Briggs & Stratton VANGUARD 810 EFI Repair Manual
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Briggs & Stratton VANGUARD 810 EFI Repair Manual

Electronic fuel injection
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REPAIR MANUAL
ELECTRONIC FUEL
INJECTION
SERVICE & DIAGNOSTICS
VANGUARD™ 810 EFI
BIG BLOCK
EFI
TM

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Summary of Contents for Briggs & Stratton VANGUARD 810 EFI

  • Page 1 REPAIR MANUAL ELECTRONIC FUEL INJECTION SERVICE & DIAGNOSTICS VANGUARD™ 810 EFI BIG BLOCK...

  • Page 3: Table Of Contents

    Section 1: Diagnostic Introduction Table of Contents Page Section 1: Diagnostic Introduction ................1 Section 2: Troubleshooting DTCs ................9 Section 3: Wire Schematics and Pin-Outs ............. 73 Section 4: Symptoms ..................... 89 Section 5: Removal/Installation ................103...
  • Page 4 Section 1: Diagnostic Introduction CAUTIONS To reduce the chance of personal injury and/or property damage, the following instructions must be carefully observed. Proper service and repair are important to the safety of the service technician and the safe, reli- able operation of all Electronic Fuel Injection (EFI) equipped engines. If part replacement is nec- essary, the part must be replaced with one of the same part number or with an equivalent part.
  • Page 5 Section 1: Diagnostic Introduction Section 1 Diagnostic Introduction Page On-Board Diagnostic (OBD) System Check ............3 Diagnostic Trouble Codes (DTCs) ................ 3 Malfunction Indicator Lamp (MIL) ................. 3 Data Link Connector (DLC) ................... 3 Non-Scan Diagnostics ..................3 Scan Diagnostics ....................3 Use MIL to Read DTCs ..................
  • Page 6 Section 1: Diagnostic Introduction This page left intentionally blank...

  • Page 7: Section 1: Diagnostic Introduction

    Section 1: Diagnostic Introduction On-Board Diagnostic (OBD) System Check When the engine is started, the MIL is extin- guished if no current fault condition exists. The basic steps of any diagnosis are as follows: If the MIL remains illuminated, it is an indica- 1.

  • Page 8: Use Mil To Read Dtcs

    Section 1: Diagnostic Introduction 8. Write down each digit as it is displayed. First digit (always 0) 9. If there is more than one DTC, the next First one second pause DTC begins to fl ash after a three second Second digit Second one second pause pause.

  • Page 9: Use Electronic Technician Assistant (Eta) To Read/Clear Dtcs

    Section 1: Diagnostic Introduction 5. To clear DTCs, proceed as follows: tool displays the number of DTCs read. For example, “dc-0” means that no DTCs were a. Click Fault Codes ribbon. found, while “dc-4” means that four DTCs b. Left click Clear. are recorded.

  • Page 10: Avoiding Ecm Damage

    Section 1: Diagnostic Introduction IMPORTANT: • Do not start engine if battery cable connections are loose. • Use care to avoid deforming connector terminals, either by forcing the probe too far • Do not use a battery charger to start engine. into the cavity or by using a probe that is too •...

  • Page 11: Special Tools

    Section 1: Diagnostic Introduction Special Tools 5. Briggs & Stratton Back Probe Wire Set The following special tools are required: (Part No. 19625). 1. Briggs & Stratton Spark Tester (Part No. 6. Briggs & Stratton Tiny Scan Code Reader 19368). (Part No.

  • Page 12: Product Improvements/Field Upgrades

    Section 1: Diagnostic Introduction Product Improvements/Field Upgrades To access a bulletin, proceed as follows: 1. Go to www.thepowerportal.com. The following Service Bulletins provide informa- 2. Enter Login and Password. tion on product improvements recently intro- duced in production. Service kits are available 3.

  • Page 13: Section 2: Troubleshooting Dtcs

    Section 2: Troubleshooting DTCs Section 2 Troubleshooting DTCs Page Diagnostic Trouble Codes (DTCs) ................ 11 Model 490000 EFI Component Locations ............. 12 Models 540000/610000 EFI Component Locations ..........13 Verify ECM Powers Up ..................14 P0031/P0032 Oxygen Sensor (HO2) Heater ............16 P0031 Scan and Non-Scan Diagnostics ................
  • Page 14 Section 2: Troubleshooting DTCs Page P0174 Power Enrichment (PE) Lean Fuel Condition ..........45 Scan and Non-Scan Diagnostics ................45 P0201/P0202 Cylinder 1 or Cylinder 2 Fuel Injector Fault ........46 P0201 Scan and Non-Scan Diagnostics ................47 P0202 Scan and Non-Scan Diagnostics ................48 P0230/P0232 Fuel Pump Fault ................

  • Page 15: Diagnostic Trouble Codes (Dtcs)

    Section 2: Troubleshooting DTCs Diagnostic Trouble Codes (DTCs) Component Description P0031 Signal Voltage Low Oxygen (O ) Sensor Heater P0032 Signal Voltage High P0107 Signal Voltage Low or Open Manifold Absolute Pressure (MAP) Sensor P0108 Signal Voltage High P0112 Signal Voltage Low Manifold Air Temperature (MAT) Sensor P0113 Signal Voltage High or Open...

  • Page 16: Model 490000 Efi Component Locations

    Section 2: Troubleshooting DTCs Model 490000 EFI Component Locations MAP/MAT Cylinder 1 Sensor Sensor Cylinder 2 Ignition Coil Ignition Coil Cylinder 2 Fuel Injector Cylinder 1 Fuel Injector Fuse/Relay Block Sensor Sensor Figure 2-1 Model 490000 Components. (Static Guard, Decorative Cover, and Blower Housing Removed for Illustration Purposes.) Disassembly Required for Back Probing Connector ( ) or Replacing Component ( Remove...

  • Page 17: Models 540000/610000 Efi Component Locations

    Section 2: Troubleshooting DTCs Models 540000/610000 EFI Component Locations MAP/MAT Fuse/Relay Block Sensor Sensor M54 & M61 Turf Only NOTE: On vertical shaft units, sensor is mounted as shown. On M61 Marine Only horizontal shaft units, sensor is behind intake manifold in area Sensor circled.

  • Page 18: Verify Ecm Powers Up

    Section 2: Troubleshooting DTCs Verify ECM Powers Up Circuit Description inner surfaces can cause a poor connection to ground. Since all EFI components are dependent on proper operation of the ECM, any diagno- NOTE: When the ECM is powered up, you sis must include checking ECM power and may hear the fuel pump module prime for two grounds.
  • Page 19 Section 2: Troubleshooting DTCs Check ECM Power and Grounds Scan and Non-Scan Diagnostics (Page 2 of 2) Step Action 1. Remove probe from terminal J2-02, and back probe terminal J1-09 (Black wire) of ECM J1 (Grey) connector. 2. Connect terminal J1-09 back probe to red meter Look for open or short test lead on DVOM.
  • Page 20 Section 2: Troubleshooting DTCs Sensor VIOLET WHITE GREY BLACK Inline Connector BROWN WHITE/GREEN From Main Power Relay GREY/BLACK J2 07 J2 10 J2 17 Oxygen Oxygen 5 Volt Sensor Sensor Return Signal Heater Control DTC P0031/P0032 Oxygen Sensor (HO ) Heater Signal Voltage Low or High Circuit Description Diagnostic Aids...
  • Page 21 Section 2: Troubleshooting DTCs DTC P0031 Oxygen Sensor (HO ) Heater Scan and Non-Scan Diagnostics Step Action 1. Disconnect and reconnect O sensor and ECM J2 (Black) connectors. 2. Turn Ignition ON, Engine OFF. Problem Go to step 2. 3. Clear codes. corrected.
  • Page 22 Section 2: Troubleshooting DTCs DTC P0032 Oxygen Sensor (HO ) Heater Scan and Non-Scan Diagnostics Step Action 1. Disconnect and reconnect O sensor and ECM J2 (Black) connectors. 2. Turn Ignition ON, Engine OFF. Problem Go to step 2. 3. Clear codes. corrected.

  • Page 23: P0107/P0108 Manifold Absolute Pressure (Map) Sensor

    Section 2: Troubleshooting DTCs MAT/MAP Sensor TAN/BLACK BROWN WHITE/RED RED/WHITE J2 10 J2 08 J2 16 J2 11 5 Volt 5 Volt Reference Return Sensor Sensor Signal Signal DTC P0107/P0108 Manifold Absolute Pressure (MAP) Sensor Signal Voltage Low, Open or High Circuit Description Diagnostic Aids Check for the following conditions:...

  • Page 24: Scan Diagnostics

    Section 2: Troubleshooting DTCs DTC P0107 Manifold Absolute Pressure (MAP) Sensor Scan Diagnostics Step Action 1. Select the Dashboard ribbon and then the Sensors tab. MAP sensor 2. Under Pressure heading, observe MAP Sensor Actual Go to step 2. circuit OK. display with or without the engine running.

  • Page 25: Non-Scan Diagnostics

    Section 2: Troubleshooting DTCs DTC P0107 Manifold Absolute Pressure (MAP) Sensor Non-Scan Diagnostics (Page 1 of 2) Step Action 1. Disconnect and reconnect MAP sensor and ECM J2 (Black) connectors. 2. Turn Ignition ON, Engine OFF. Problem Go to step 2. 3.
  • Page 26 Section 2: Troubleshooting DTCs DTC P0107 Manifold Absolute Pressure (MAP) Sensor Non-Scan Diagnostics (Page 2 of 2) Step Action 1. Turn Ignition OFF. 2. Remove probe from terminal J2-16, and back probe terminal 1 (White/Red wire) of MAP sensor connector. MAP sensor OK.

  • Page 27: Scan Diagnostics

    Section 2: Troubleshooting DTCs DTC P0108 Manifold Absolute Pressure (MAP) Sensor Scan Diagnostics Step Action 1. Select the Dashboard ribbon and then the Sensors tab. MAP sensor 2. Under Pressure heading, observe MAP Sensor Actual Go to step 2. circuit OK. display with or without the engine running.
  • Page 28 Section 2: Troubleshooting DTCs DTC P0108 Manifold Absolute Pressure (MAP) Sensor Non-Scan Diagnostics Step Action 1. Disconnect and reconnect MAP sensor and ECM J2 (Black) connectors. 2. Turn Ignition ON, Engine OFF. Problem Go to step 2. 3. Clear codes. corrected.
  • Page 29 Section 2: Troubleshooting DTCs MAT/MAP Sensor TAN/BLACK BROWN WHITE/RED RED/WHITE J2 16 J2 10 J2 08 J2 11 5 Volt 5 Volt Sensor Reference Return Sensor Signal Signal DTC P0112/P0113 Manifold Air Temperature (MAT) Sensor Signal Voltage Low, High or Open Circuit Description 3.

  • Page 30: Scan Diagnostics

    Section 2: Troubleshooting DTCs DTC P0112 Manifold Air Temperature (MAT) Sensor Scan Diagnostics Step Action 1. Select the Dashboard ribbon and then the Sensors tab. MAT sensor 2. Under Temperature heading, observe MAT Sensor Ac- Go to step 2. circuit OK. tual display with or without the engine running.

  • Page 31: Non-Scan Diagnostics

    Section 2: Troubleshooting DTCs DTC P0112 Manifold Air Temperature (MAT) Sensor Non-Scan Diagnostics Step Action 1. Disconnect and reconnect MAT sensor and ECM J2 (Black) connectors. 2. Turn Ignition ON, Engine OFF. Problem Go to step 2. 3. Clear codes. corrected.

  • Page 32: Scan Diagnostics

    Section 2: Troubleshooting DTCs DTC P0113 Manifold Air Temperature (MAT) Sensor Scan Diagnostics Step Action 1. Select the Dashboard ribbon and then the Sensors tab. MAT sensor 2. Under Temperature heading, observe MAT Sensor Ac- Go to step 2. circuit OK. tual display with or without the engine running.

  • Page 33: Non-Scan Diagnostics

    Section 2: Troubleshooting DTCs DTC P0113 Manifold Air Temperature (MAT) Sensor Non-Scan Diagnostics Step Action 1. Disconnect and reconnect MAT sensor and ECM J2 (Black) connectors. 2. Turn Ignition ON, Engine OFF. Problem Go to step 2. 3. Clear codes. corrected.
  • Page 34 Section 2: Troubleshooting DTCs EHT Sensor GREY GREY Harness Splice BROWN J2 10 J2 14 5 Volt Return Sensor Signal DTC P0117/P0118 Engine Head Temperature (EHT) Sensor Signal Voltage Low, High or Open Circuit Description Diagnostic Aids The EHT sensor uses a thermistor to control Check for the following conditions: signal voltage to the ECM.

  • Page 35: Scan Diagnostics

    Section 2: Troubleshooting DTCs DTC P0117 Engine Head Temperature (EHT) Sensor Scan Diagnostics Step Action 1. Select the Dashboard ribbon and then the Sensors tab. EHT sensor 2. Under Temperature heading, observe EHT Sensor Go to step 2. circuit OK. Actual display with or without the engine running.

  • Page 36: Non-Scan Diagnostics

    Section 2: Troubleshooting DTCs DTC P0117 Engine Head Temperature (EHT) Sensor Non-Scan Diagnostics Step Action 1. Disconnect and reconnect ECM J2 (Black) connector. 2. Turn Ignition ON, Engine OFF. Problem Go to step 2. 3. Clear codes. corrected. 4. Turn Ignition OFF, and then back ON. 5.

  • Page 37: Scan Diagnostics

    Section 2: Troubleshooting DTCs DTC P0118 Engine Head Temperature (EHT) Sensor Scan Diagnostics Step Action 1. Select the Dashboard ribbon and then the Sensors tab. EHT sensor 2. Under Temperature heading, observe EHT Sensor Go to step 2. circuit OK. Actual display with or without the engine running.

  • Page 38: Non-Scan Diagnostics

    Section 2: Troubleshooting DTCs DTC P0118 Engine Head Temperature (EHT) Sensor Non-Scan Diagnostics Step Action 1. Disconnect and reconnect ECM J2 (Black) connector. 2. Turn Ignition ON, Engine OFF. Problem Go to step 2. 3. Clear codes. corrected. 4. Turn Ignition OFF, and then back ON. 5.
  • Page 39 Section 2: Troubleshooting DTCs BROWN RED/WHITE PINK/BLACK J2 10 J2 16 J2 12 5 Volt 5 Volt Return Reference Sensor Signal DTC P0122/P0123 Throttle Position Sensor (TPS) Signal Voltage Low, Open or High Circuit Description Diagnostic Aids The TPS is a potentiometer connected to the Check for the following conditions: throttle shaft on the throttle body.
  • Page 40 Section 2: Troubleshooting DTCs DTC P0122 Throttle Position Sensor (TPS) Scan Diagnostics Step Action 1. Select the Dashboard ribbon and then the Sensors tab. 2. Under Position Sensor heading, observe TPS Raw TPS circuit OK. Go to step 2. Voltage display with or without the engine running. 3.
  • Page 41 Section 2: Troubleshooting DTCs DTC P0122 Throttle Position Sensor (TPS) Non-Scan Diagnostics Step Action 1. Disconnect and reconnect TPS and ECM J2 (Black) connectors. 2. Turn Ignition ON, Engine OFF. Problem Go to step 2. 3. Clear codes. corrected. 4. Turn Ignition OFF, and then back ON. 5.
  • Page 42 Section 2: Troubleshooting DTCs DTC P0123 Throttle Position Sensor (TPS) Scan Diagnostics Step Action 1. Select the Dashboard ribbon and then the Sensors tab. 2. Under Position Sensor heading, observe TPS Raw TPS circuit OK. Go to step 2. Voltage display with or without the engine running. 3.
  • Page 43 Section 2: Troubleshooting DTCs DTC P0123 Throttle Position Sensor (TPS) Non-Scan Diagnostics Step Action 1. Disconnect and reconnect TPS and ECM J2 (Black) connectors. 2. Turn Ignition ON, Engine OFF. Problem Go to step 2. 3. Clear codes. corrected. 4. Turn Ignition OFF, and then back ON. 5.
  • Page 44 Section 2: Troubleshooting DTCs Sensor VIOLET WHITE GREY BLACK Inline Connector BROWN WHITE/GREEN From Main Power Relay GREY/BLACK J2 07 J2 10 J2 17 Oxygen Oxygen 5 Volt Sensor Sensor Return Signal Heater Control DTC P0131/P0132 Heated Oxygen (HO ) Sensor Signal Voltage Low or High Circuit Description Diagnostic Aids...
  • Page 45 Section 2: Troubleshooting DTCs DTC P0131 Heated Oxygen (HO ) Sensor Scan Diagnostics Step Action 1. Select the Dashboard ribbon and then the Main tab. 2. Observe HO2 Sensor display with or without the sensor engine running. Go to step 2. circuit OK.
  • Page 46 Section 2: Troubleshooting DTCs DTC P0131 Heated Oxygen (HO ) Sensor Non-Scan Diagnostics Step Action 1. Disconnect and reconnect HO sensor and ECM J2 (Black) connectors. 2. Turn Ignition ON, Engine OFF. Problem Go to step 2. 3. Clear codes. corrected.
  • Page 47 Section 2: Troubleshooting DTCs DTC P0132 Heated Oxygen (HO ) Sensor Scan Diagnostics Step Action 1. Select the Dashboard ribbon and then the Main tab. 2. Observe HO2 Sensor display with or without the en- sensor gine running. Go to step 2. circuit OK.
  • Page 48 Section 2: Troubleshooting DTCs DTC P0132 Heated Oxygen (HO ) Sensor Non-Scan Diagnostics Step Action 1. Disconnect and reconnect HO sensor and ECM J2 (Black) connectors. 2. Turn Ignition ON, Engine OFF. Problem Go to step 2. 3. Clear codes. corrected.
  • Page 49 Section 2: Troubleshooting DTCs DTC P0174 Power Enrichment (PE) Lean Fuel Condition Scan and Non-Scan Diagnostics Diagnostic Aids Circuit Description If DTC P0174 is set, the ECM is detecting an The PE mode is initiated in higher load run- overly lean condition under heavy load. ning conditions.
  • Page 50 Section 2: Troubleshooting DTCs From Main Power Relay Cylinder 1 Cylinder 2 Fuel Fuel Injector Injector LT. BLUE/WHITE LT. BLUE/BLACK J2 05 J2 06 Injector Injector Driver A Driver B DTC P0201/P0202 Cylinder 1 or Cylinder 2 Fuel Injector Fault Circuit Description Diagnostic Aids The ECM controls each fuel injector by...
  • Page 51 Section 2: Troubleshooting DTCs DTC P0201 Cylinder 1 Fuel Injector Fault Scan and Non-Scan Diagnostics Step Action 1. Disconnect and reconnect cylinder 1 fuel injector and ECM J2 (Black) connectors. Problem 2. Turn Ignition ON, Engine OFF. Clear codes. Go to step 2. corrected.
  • Page 52 Section 2: Troubleshooting DTCs DTC P0202 Cylinder 2 Fuel Injector Fault Scan and Non-Scan Diagnostics Step Action 1. Disconnect and reconnect cylinder 2 fuel injector and ECM J2 (Black) connectors. Problem 2. Turn Ignition ON, Engine OFF. Clear codes. Go to step 2. corrected.
  • Page 53 Section 2: Troubleshooting DTCs Fuel Pump Module From Main Power BLUE/YELLOW Relay J2 09 Fuel Pump Control DTC P0230/P0232 Fuel Pump Fault Signal Voltage Low, Open or High Circuit Description Diagnostic Aids The fuel pump is controlled by the ECM via the The following conditions may have caused the ground circuit of the fuel pump plug.
  • Page 54 Section 2: Troubleshooting DTCs DTC P0230 Fuel Pump Fault Scan and Non-Scan Diagnostics Step Action 1. Disconnect and reconnect fuel pump module and ECM J2 (Black) connectors. 2. Turn Ignition ON, Engine OFF. Problem Go to step 2. 3. Clear codes. corrected.
  • Page 55 Section 2: Troubleshooting DTCs DTC P0232 Fuel Pump Fault Scan and Non-Scan Diagnostics Step Action 1. Disconnect and reconnect fuel pump module con- nector. 2. Turn Ignition ON, Engine OFF. Problem Go to step 2. 3. Clear codes. corrected. 4. Turn Ignition OFF, and then back ON. 5.
  • Page 56 Section 2: Troubleshooting DTCs FLYWHEEL CKP Sensor Inline Connector GREEN/WHITE BLACK/WHITE Twisted Cable Pair BLACK/WHITE GREEN/WHITE J2 04 J2 13 High DTC P0336/P0337 Crankshaft Position (CKP) Sensor Signal Voltage Noisy or Absent Modes of Operation Diagnostic Aids The CKP sensor works in conjunction with Check for the following conditions: the 23X reluctor target wheel on the fl...
  • Page 57 Section 2: Troubleshooting DTCs DTC P0336 Crankshaft Position (CKP) Sensor Scan Diagnostics Step Action 1. Select the Dashboard ribbon and then the Sen- sors tab. CKP sensor 2. Under VR Sensor heading, observe the Tooth Error Go to step 2. circuit OK.
  • Page 58 Section 2: Troubleshooting DTCs DTC P0336 Crankshaft Position (CKP) Sensor Non-Scan Diagnostics Step Action 1. Disconnect and reconnect CKP sensor con- nector. 2. Turn Ignition ON, Engine OFF. Go to step 2. Problem corrected. 3. Clear codes. 4. Turn Ignition OFF, and then back ON. 5.
  • Page 59 Section 2: Troubleshooting DTCs DTC P0337 Crankshaft Position (CKP) Sensor Scan Diagnostics Step Action 1. Select the Dashboard ribbon and then the Sen- sors tab. Go to DTC CKP sensor 2. Under VR Sensor heading, observe Engine Speed P0337 Non-Scan circuit OK.
  • Page 60 Section 2: Troubleshooting DTCs DTC P0337 Crankshaft Position (CKP) Sensor Non-Scan Diagnostics Step Action 1. Disconnect and reconnect CKP sensor con- nector. 2. Turn Ignition ON, Engine OFF. Problem Go to step 2. 3. Clear codes. corrected. 4. Turn Ignition OFF, and then back ON. 5.
  • Page 61 Section 2: Troubleshooting DTCs From Main Power Relay YELLOW YELLOW Inline Inline Connector Connector Ignition Coil Ignition Coil Cylinder 1 Cylinder 2 VIOLET/WHITE VIOLET/BLACK Spark Plug Spark Plug J2 01 J1 10 Ignition Ignition Coil Coil Driver A Driver B DTC P0351/P0352 Cylinder 1 or Cylinder 2 Ignition Coil Fault Circuit Description Diagnostic Aids...
  • Page 62 Section 2: Troubleshooting DTCs DTC P0351 Cylinder 1 Ignition Coil Fault Scan and Non-Scan Diagnostics Step Action 1. Disconnect and reconnect cylinder 1 ignition coil and ECM J2 (Black) connectors. Problem 2. Turn Ignition ON, Engine OFF. Clear codes. Go to step 2. corrected.
  • Page 63 Section 2: Troubleshooting DTCs DTC P0352 Cylinder 2 Ignition Coil Fault Scan and Non-Scan Diagnostics Step Action 1. Disconnect and reconnect cylinder 2 ignition coil and ECM J1 (Grey) connectors. Problem 2. Turn Ignition ON, Engine OFF. Clear codes. Go to step 2. corrected.
  • Page 64 Section 2: Troubleshooting DTCs BLUE/RED BLUE/GREEN BLUE/GRAY BLUE/BROWN J1 13 J1 11 J1 12 J1 01 IAC A IAC B IAC B IAC A High High Control Control Control Control DTC P0505 Idle Air Control (IAC) Malfunction Circuit Description 2. Check for vacuum leaks, disconnected or brittle vacuum hoses, cuts, etc.
  • Page 65 Section 2: Troubleshooting DTCs DTC P0505 Idle Air Control (IAC) Malfunction Scan Diagnostics Step Action 1. Select the Dashboard ribbon and then the Main tab. 2. Observe Engine Speed display while idling. 3. Is reading 750-950 RPM? Go to DTC P0505 NOTE: Cold engine temperatures and low battery voltages circuit OK.
  • Page 66 Section 2: Troubleshooting DTCs DTC P0505 Idle Air Control (IAC) Malfunction Non-Scan Diagnostics Step Action 1. Disconnect and reconnect IAC and TPS con- nectors. 2. Turn Ignition ON, Engine OFF. Problem Go to step 2. 3. Clear codes. corrected. 4. Turn Ignition OFF, and then back ON. 5.
  • Page 67 Section 2: Troubleshooting DTCs Main Power Relay 10/F 20 AMP Fuse (Yellow) Ignition Switch 15 AMP Fuse (Blue) BLACK Battery J2 15 J1 17 J2 18 J1 09 Main Battery Ground Ignition Power Relay DTC P0562/P0563 System Voltage Low or High Circuit Description Diagnostic Aids The EFI system operates with a battery volt-...
  • Page 68 Section 2: Troubleshooting DTCs DTC P0562 System Voltage Low Scan Diagnostics Step Action 1. Select the Dashboard ribbon and then the Main2 tab. 2. Observe Ignition Voltage display with or without the System Go to step 2. engine running. voltage OK. 3.
  • Page 69 Section 2: Troubleshooting DTCs DTC P0562 System Voltage Low Non-Scan Diagnostics (Page 1 of 2) Step Action 1. Disconnect and reconnect ECM J2 (Black) connector. 2. Turn Ignition ON, Engine OFF. Problem 3. Clear codes. Go to step 2. corrected. 4.
  • Page 70 Section 2: Troubleshooting DTCs DTC P0562 System Voltage Low Non-Scan Diagnostics (Page 2 of 2) Step Action 1. Check charging system. See the Briggs & Stratton Intek V-Twin Cylinder OHV Repair Manual. Go to step 7. Go to step 6. 2.
  • Page 71 Section 2: Troubleshooting DTCs DTC P0563 System Voltage High Scan Diagnostics Step Action 1. Select the Dashboard ribbon and then the Main2 tab. 2. Observe Ignition Voltage display with or without the System Go to step 2. engine running. voltage OK. 3.
  • Page 72 Section 2: Troubleshooting DTCs DTC P0563 System Voltage High Non-Scan Diagnostics Step Action 1. Connect red meter test lead on DVOM to battery positive (+) post. 2. Connect black meter test lead on DVOM to Reading is above 15 volts. battery negative (-) post.
  • Page 73 Section 2: Troubleshooting DTCs 1.4W Lamp or LED with Resister +12v From Switched Source ORANGE/BLACK J1 03 DTC P0650 Malfunction Indicator Lamp (MIL) Malfunction Diagnostic Aids Circuit Description Check for the following conditions: The MIL gets 12v B+ when the ignition is in the ON or RUN position.
  • Page 74 Section 2: Troubleshooting DTCs DTC P0650 Malfunction Indicator Lamp (MIL) Malfunction Scan Diagnostics Step Action 1. Select the Dashboard ribbon and then the Main tab. 2. Observe the Code(s) Current display. 3. Does the display indicate that a current code exists? Go to step 3.
  • Page 75 Section 2: Troubleshooting DTCs DTC P0650 Malfunction Indicator Lamp (MIL) Malfunction Non-Scan Diagnostics Step Action 1. Disconnect and reconnect ECM J1 (Grey) connector. 2. Turn Ignition ON, Engine OFF. Go to step 2. Problem corrected. 3. Clear codes. 4. Turn Ignition OFF, and then back ON. 5.
  • Page 76 Section 2: Troubleshooting DTCs This page left intentionally blank...
  • Page 77 Section 3: Wire Schematics and Pin-Outs Section 3 Wire Schematics and Pin-Outs Page ECM Connector J1 (Grey) Pin-Out ................ 74 ECM Connector J2 (Black) Pin-Out ............... 75 Model 490000 EFI Electrical Schematic (Page 1 of 2) ..............76 EFI Electrical Schematic (Page 2 of 2) ..............77 Engine to Chassis 6-Place Connector Pin-Out ............

  • Page 78: Section 3: Wire Schematics And Pin-Outs

    Section 3: Wire Schematics and Pin-Outs ECM Connector J1 (Grey) Pin-Out ECM J1 Connector- Wire Color Function Pin Number J1-01 Blue/Brown IAC HIGH “A” Idle Air Control A High J1-02 NOT USED J1-03 Orange/Black Malfunction Indicator Lamp J1-04 NOT USED J1-05 J1-06 Black/Red...

  • Page 79: Ecm Connector J2 (Black) Pin-Out

    Section 3: Wire Schematics and Pin-Outs ECM Connector J2 (Black) Pin-Out ECM J2 Connector- Wire Color Function Pin Number J2-01 Violet/Black IGN COIL CYL 1 Engine Spark Timing Ignition Coil Cylinder 1 J2-02 Black GROUND Power J2-03 Pink K-LINE Serial Data Diagnostic Communication J2-04 Black/White CKP High...

  • Page 80: Model 490000

    Section 3: Wire Schematics and Pin-Outs Model 490000 EFI Electrical Schematic (Page 1 of 2) Main Power VBAT Relay VBAT J2-18 BLACK J1-09 20A Fuse (Yellow) VIOLET J1-17 IGN Switch 15A Fuse (Blue) J2-15 Battery (POWER ) FUSE/RELAY BLOCK J2-11 WHITE/RED MAP SENSOR SIGNAL J2-16...
  • Page 81 Section 3: Wire Schematics and Pin-Outs Model 490000 EFI Electrical Schematic (Page 2 of 2) YELLOW IGNITION COIL J1-10 VIOLET/WHITE CYLINDER 2 Ignition Coil Ignition Coil IGNITION COIL J2-01 VIOLET/BLACK CYLINDER 1 Spark Plugs IGNITION Injector 1 Injector 2 FUEL INJECTOR J2-05 LT.

  • Page 82: Engine To Chassis 6-Place Connector Pin-Out

    Section 3: Wire Schematics and Pin-Outs Model 490000 Engine to Chassis 6-Place Connector Pin-Out (Standard) Engine Connector GREEN Oil Pressure Switch VIOLET YELLOW/RED Starter 15A Fuse Ignition ORANGE/WHITE (Blue) ORANGE/BLACK J1 14 J2 15 J1 03 Safety Interrupt Chassis Connector (Equipment Side) 1.4W Lamp or LED with Resister ORANGE/BLACK...

  • Page 83: Engine To Chassis 8-Place Connector Pin-Out

    Section 3: Wire Schematics and Pin-Outs Model 490000 Engine to Chassis 8-Place Connector Pin-Out (Optional) Engine Connector 15A Fuse Starter Ignition (Blue) YELLOW/RED ORANGE/WHITE VIOLET ORANGE/BLACK J1 14 J1 03 J2 15 Safety Interrupt GREEN Oil Pressure Switch Chassis Connector (Equipment Side) YELLOW/RED Starter Ignition...

  • Page 84: Models 540000/610000 Turf Efi Electrical Schematic

    Section 3: Wire Schematics and Pin-Outs Models 540000/610000 Turf EFI Electrical Schematic (Page 1 of 2) VBAT Main Power Relay VBAT J2-18 J1-09 BLACK 20A Fuse (Yellow) J1-17 VIOLET J2-15 15A Fuse IGN Switch Fuel Pump (Blue) Relay Electric Lift Fuel Pump Pump Module...
  • Page 85 Section 3: Wire Schematics and Pin-Outs Models 540000/610000 Turf EFI Electrical Schematic (Page 2 of 2) YELLOW IGNITION COIL J1-10 VIOLET/WHITE CYLINDER 2 Ignition Coil Ignition Coil IGNITION COIL J2-01 VIOLET/BLACK CYLINDER 1 Spark Plugs IGNITION FUEL DELIVERY Injector 1 Injector 2 FUEL INJECTOR J2-05...
  • Page 86 Section 3: Wire Schematics and Pin-Outs Models 540000/610000 Turf Engine to Chassis 8-Place and 2-Place Connector Pin-Outs (Option 1) Engine Connectors Fuel Power In Fuel Chassis Pump From Fuel Pump Ground Relay Pump Relay BLACK BLACK 15A Fuse Starter Ignition YELLOW/RED (Blue) VIOLET...

  • Page 87: Engine To Chassis 6-Place And 2-Place Connector Pin-Outs

    Section 3: Wire Schematics and Pin-Outs Models 540000/610000 Turf Engine to Chassis 6-Place and 2-Place Connector Pin-Outs (Option 2) Engine Connectors BLACK/RED ORANGE/BLACK Oil Pressure Switch GREEN YELLOW/RED ORANGE/WHITE Starter VIOLET BLACK 15A Fuse Ignition (Blue) J1 03 J2 15 J2 02 J1 09 J1 14...

  • Page 88: Model 610000 Marine Efi Electrical Schematic

    Section 3: Wire Schematics and Pin-Outs Model 610000 Marine EFI Electrical Schematic (Page 1 of 2) VBAT Main Power Relay VBAT J2-18 J1-09 BLACK 20A Fuse (Yellow) J1-17 VIOLET J2-15 15A Fuse IGN Switch Fuel Pump (Blue) Relay Electric Lift Fuel Pump Pump Module...
  • Page 89 Section 3: Wire Schematics and Pin-Outs Model 610000 Marine EFI Electrical Schematic (Page 2 of 2) YELLOW IGNITION COIL J1-10 VIOLET/WHITE CYLINDER 2 Ignition Coil Ignition Coil IGNITION COIL J2-01 VIOLET/BLACK CYLINDER 1 Spark Plugs IGNITION Injector 1 Injector 2 FUEL INJECTOR J2-05 LT.

  • Page 90: Engine To Chassis 6-Place And 2-Place Connector Pin-Outs

    Section 3: Wire Schematics and Pin-Outs Model 610000 Marine Engine to Chassis 6-Place and 2-Place Connector Pin-Outs Engine Connectors Fuel Pump Relay ORANGE/BLACK YELLOW/RED ORANGE/WHITE Starter VIOLET BLACK 15A Fuse Ignition (Blue) J1 03 J2 15 J2 02 J1 09 J1 14 Safety Interrupt...

  • Page 91: Models 490000/540000/610000 Fuse/Relay Block

    Section 3: Wire Schematics and Pin-Outs Models 490000/540000/610000 Fuse/Relay Block 15A Fuse Main Power Ignition Relay (Blue) Fuel Pump 20A Fuse Relay Battery (Models 540000/610000 Only) (Yellow)
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  • Page 93 Section 4: Symptoms Section 4 Symptoms Page Introduction ......................90 Engine Does Not Crank ..................91 Engine Cranks But Does Not Start ............... 92 Engine Exhibits Hard Start Symptoms ..............94 Engine Power Output Low ..................96 Engine Hunts and Surges ..................98 ECM Connector Symptoms ..................

  • Page 94: Section 4: Symptoms

    Section 4: Symptoms Introduction Verify Customer Complaint Intermittents Verify customer complaint and then move to IMPORTANT: Intermittents may not cause the the Diagnostic Table that best describes the MIL to illuminate or set a DTC. DO NOT use problem. the DTC Tables to diagnose intermittent prob- lems.

  • Page 95: Engine Does Not Crank

    Section 4: Symptoms Engine Does Not Crank Step Action Perform OBD System Check. Go to applicable Go to step 2. DTC Table. Are any DTCs found? Perform a careful visual check. Repair Go to step 3. Is a problem found? Check battery as follows: •...

  • Page 96: Engine Cranks But Does Not Start

    Section 4: Symptoms Engine Cranks But Does Not Start (Page 1 of 2) Step Action Perform OBD System Check. Go to applicable Go to step 2. DTC Table. Are any DTCs found? Perform a careful visual check. * Repair Go to step 3. Is a problem found? Verify fuel in tank(s).
  • Page 97 Section 4: Symptoms Engine Cranks But Does Not Start (Page 2 of 2) Step Action Check engine for the following mechanical problems: • Low compression. • Leaking cylinder head gaskets. Repair Go to step 12. • Proper valve set up. See Intek V-Twin Cylinder OHV Repair Manual.

  • Page 98: Engine Exhibits Hard Start Symptoms

    Section 4: Symptoms Engine Exhibits Hard Start Symptoms (Page 1 of 2) Defi nition: Engine cranks OK, but does not start for a long time. Does run, or may start but im- mediately die. Step Action Perform OBD System Check. Go to applicable Go to step 2.
  • Page 99 Section 4: Symptoms Engine Exhibits Hard Start Symptoms (Page 2 of 2) Step Action Check engine for the following mechanical problems: • Low compression. • Leaking cylinder head gaskets. Repair Go to step 10. • Proper valve set up. See Intek V-Twin Cylinder OHV Repair Manu- Is a problem found? Review diagnostic procedures in this table.

  • Page 100: Engine Power Output Low

    Section 4: Symptoms Engine Power Output Low (Page 1 of 2) Step Action Perform OBD System Check. Go to applicable Go to step 2. Are any DTCs found? DTC Table. Perform a careful visual check. Repair Go to step 3. Is a problem found? Check the following fuel system components for dirt, water, or other contaminants.
  • Page 101 Section 4: Symptoms Engine Power Output Low (Page 2 of 2) Step Action Check engine for the following mechanical problems: • Low compression. • Leaking cylinder head gaskets. Repair Go to step 11. • Proper valve set up. See Intek V-Twin Cylinder OHV Repair Manual. Is a problem found? Review diagnostic procedures in this table.

  • Page 102: Engine Hunts And Surges

    Section 4: Symptoms Engine Hunts and Surges (Page 1 of 2) Step Action Perform OBD System Check. Go to applicable Go to step 2. DTC Table. Are any DTCs found? Perform a careful visual check. Repair Go to step 3. Is a problem found? Check the following fuel system components for dirt, water, or other contaminants.
  • Page 103 Section 4: Symptoms Engine Hunts and Surges (Page 2 of 2) Step Action Inspect governor spring and controls for dam- age or improper installation. Repair Go to step 12. Is a problem found? Review diagnostic procedures in this table. If all steps have been completed and no prob- lems have been found, proceed as follows: •...

  • Page 104: Ecm Connector Symptoms

    Section 4: Symptoms ECM Connector Symptoms ECM J1 ECM J2 ECM Connector J1 (Grey) Connector- Possible Symptom Function Wire Color Pin Number From Faulty Circuit IAC HIGH “A” J1-01 Rough, unstable, or incorrect idle Blue/Brown Idle Air Control A High J1-02 NOT USED J1-03...
  • Page 105 Section 4: Symptoms ECM Connector J2 (Black) Connector- Possible Symptom Function Wire Color Pin Number From Faulty Circuit IGN COIL CYL 1 J2-01 Rough idle, lack of power, stalling Violet/Black Engine Spark Timing Coil Cylinder 1 An open ground or high resistance GROUND J2-02 ground may cause any or all symp-...
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  • Page 107 Section 5: Removal/Installation Section 5 Removal/Installation Page Safety Precautions ....................104 Check/Relieve Fuel System Pressure for Model 490000 ........104 Check/Relieve Fuel System Pressure for Models 540000/610000 ....104 Model 490000 Fuel System Components ............... 107 Air Cleaner Assembly/Static Guard/Decorative Cover/Blower Housing ..... 107 ECM ........................

  • Page 108: Section 5: Removal/Installation

    Section 5: Removal/Installation Safety Precautions 4. Locate fuel pressure test port (Schrader Always observe the following safety precau- valve) on fuel pump module to fuel rail con- tions before removing any fuel system compo- nector. nents. 5. Remove protective cap from Schrader CAUTION valve and install fuel pressure gauge.
  • Page 109 Section 5: Removal/Installation Proceed as follows: 13. Turn Ignition ON to pressurize fuel system. NOTE: Perform all steps if checking fuel sys- 14. Note the reading of the fuel pressure tem pressure. If only relieving fuel system gauge. Fuel pressure should remain steady pressure, perform steps 1-7.
  • Page 110 Section 5: Removal/Installation MAP/MAT Cylinder 1 Sensor Sensor Cylinder 2 Ignition Coil Ignition Coil Cylinder 2 Fuel Injector Cylinder 1 Fuel Injector Fuse/Relay Block Sensor Sensor Figure 5-1 Model 490000 Components. (Static Guard, Decorative Cover, and Blower Housing Removed for Illustration Purposes.)

  • Page 111: Model 490000 Fuel System Components

    Section 5: Removal/Installation Model 490000 Fuel System Components 2. Remove six hex fl ange screws to release Air Cleaner Assembly/Static Guard/ static guard (B). Decorative Cover/Blower Housing 3. Remove four hex fl ange screws to release Removal decorative cover (C) from upper air cleaner 1.
  • Page 112 Section 5: Removal/Installation Figure 5-3 Verify Alignment of All Six Blower Housing Screws Before Tightening. 7. Remove two hex fl ange screws to release 4. Verify high tension leads are routed mechanical diaphragm fuel pump bracket through slots on each side or damage will from blower housing.

  • Page 113: Ecm

    Section 5: Removal/Installation 12. Install two hex fl ange screws to fasten me- Installation chanical diaphragm fuel pump bracket to 1. Connect J1 and J2 connectors to new blower housing. Alternately tighten screws ECM. to 12-16 in-lbs (1-2 Nm). NOTE: The words BLACK and GREY are 13.

  • Page 114: Ignition Coil

    Section 5: Removal/Installation Installation 1. With the arrow pointing in the direction of fuel fl ow, install new fuel fi lter between fuel inlet and outlet hoses. See Figure 5-4. 2. Turn ignition switch ON for two seconds, and then OFF for 10 seconds. Turn the ignition switch back to ON and check for Figure 5-4 Point Arrow in Direction of Fuel Flow.

  • Page 115: Fuel Pump Module

    Section 5: Removal/Installation 2. Install two hex fl ange screws to secure fuel pump to blower housing. Alternately tight- en screws to 12-16 in-lbs (1-2 Nm). 3. Squeeze hose clip and install hose from fuel fi lter onto fuel inlet port (A). 4.

  • Page 116: Fuel Rail/Fuel Injectors

    Section 5: Removal/Installation Fuel Rail/Fuel Injectors Removal 1. See Safety Precautions, Relieve Fuel Sys- tem Pressure. 2. See Air Cleaner Assembly/Static Guard/ Decorative Cover/Blower Housing, Re- moval. 3. Remove EFI wire harness retaining clip from fuel rail. See A of Figure 5-7. 4.

  • Page 117: Ckp Sensor

    Section 5: Removal/Installation ignition switch back to ON and check for fuel leaks. 11. See Air Cleaner Assembly/Static Guard/ Decorative Cover/Blower Housing, Installa- tion. CKP Sensor Removal 1. See Air Cleaner Assembly/Static Guard/ Decorative Cover/Blower Housing, Re- moval. 2. Remove fuel rail retaining clip from hole in CKP sensor bracket.
  • Page 118 Section 5: Removal/Installation • Disconnect starter solenoid ring and spade terminals. • Remove hex fl ange screw to release ground wire ring terminal from cylinder boss. • Remove two hex fl ange screws to release starter motor from cylinder 1. •...
  • Page 119 Section 5: Removal/Installation Cable Strap Starter Solenoid Ring Terminal Starter Solenoid SpadeTerminal ECM Ground MAP/MAT Sensor Wire Ring Terminal Ignition Coil Fuse Block Cylinder 1 ECM J1 ECM J2 Voltage Regulator Ignition Coil 6-Place Socket Cylinder 2 HO2 Sensor Fuel Injector Cylinder 2 Ground Wire Fuel Injector...
  • Page 120 Section 5: Removal/Installation • Seat starter motor by alternately tightening screws to 50 in-lbs (6 Nm), and then fi nal tighten screws to 145-165 in-lbs (16-19 Nm). NOTE: Exercise care to avoid pinching, kinking or otherwise damaging wires as starter motor is installed. •...

  • Page 121: Ho 2 Sensor

    Section 5: Removal/Installation • Connect 6-place (or 8-place) engine to Sensor chassis connector. Removal 5. Install fl ywheel. Proceed as follows: 1. Disconnect HO sensor connector. 2. Rotate sensor body hex CCW to release CAUTION: Keep fi ngers away from sensor from muffl...
  • Page 122 Section 5: Removal/Installation MAP/MAT Fuse/Relay Block Sensor Sensor M54 & M61 Turf Only NOTE: On vertical shaft units, sensor is mounted as shown. On M61 Marine Only horizontal shaft units, sensor is behind intake manifold in area Sensor circled. Cylinder 1 Fuel Injector Cylinder 2 M61 Marine Only...

  • Page 123: Models 540000/610000 Fuel System Components

    Section 5: Removal/Installation Models 540000/610000 Fuel System Components Access Cover/Blower Housing Removal 1. Remove two Phillips screws (1-2) to re- lease access cover from blower housing. See Figure 5-15. 2. Lift access cover straight up to release tongues from grooves in blower housing. 3.

  • Page 124: Map/Mat Sensor

    Section 5: Removal/Installation grade product in the fi eld includes a new fuse/ Installation relay block cover, ECM mounting bracket, rub- 1. Lightly lubricate O-ring of new MAP/MAT ber isolation mounts, and mounting hardware. sensor. See Service Bulletin DSB-1053 for details. 2.

  • Page 125: Fuel Filter

    Section 5: Removal/Installation Installation 1. Loop cable strap on ignition coil wire har- ness socket connector around inside mounting boss on intake manifold. 2. Connect ignition coil connector. 3. Install two hex fl ange screws to fasten Figure 5-17 Point Arrow in Direction of Fuel Flow. ignition coil to intake manifold mounting bosses.

  • Page 126: Fuel Rail/Fuel Injectors

    Section 5: Removal/Installation 8. Squeeze hose clip at fuel inlet port (D) and 9. Install access cover. See Access Cover/ remove hose from fuel fi lter. Blower Housing, Installation, steps 7-10. 9. Remove fuel pump module. Fuel Rail/Fuel Injectors NOTE: Fuel pump module may contain Removal a small quantity of fuel.

  • Page 127: Ckp Sensor

    Section 5: Removal/Installation Installation Installation 1. Lightly lubricate fuel injector O-rings with 1. Start two Phillips screws to fasten CKP clean engine oil. sensor bracket to cylinder mounting boss- es. Alternately tighten screws until snug. 2. Install fuel injectors into intake manifold. 3.

  • Page 128: Throttle Body

    Section 5: Removal/Installation 7. Remove four hex screws (5-8) to release carburetor shield and throttle body adapter from throttle body. 8. See B of Figure 5-20. Squeeze clip and re- move EVAP tube (to throttle body adapter) from top of fuel pump module. Installation 1.

  • Page 129: Eht Sensor

    Section 5: Removal/Installation 7. Disconnect TPS connector. Installation 1. Connect TPS connector. 2. Connect IAC connector. 3. Install two hex fl ange screws in throttle body fl anges. Hang new gasket on screws, so that tab points toward idle screw with spring.
  • Page 130 Section 5: Removal/Installation ECM Ground Wire Fuel Injector Ring Terminal Cylinder 1 Sensor Ignition Coil ECM J1 Cylinder 1 Fuel Pump Module 2-Place Socket Fuse/Relay Block ECM J2 EHT Sensor 6-Place Socket Tachometer/ Hourmeter/MIL Ignition Coil Cylinder 2 Ground Wire Ring Terminal Starter Solenoid Starter Solenoid...

  • Page 131: Iac

    Section 5: Removal/Installation • Slide Phillips screw through ECM fl ange • Connect starter solenoid ring and spade (Grey ECM J1 connector side) and ground terminals. wire ring terminal. Start screw into ECM/ • Connect 2- and 6-place (or single 8-place) fuse block bracket and tighten to 35-52 in- engine to chassis connectors.

  • Page 132: Tps

    Section 5: Removal/Installation 14. Turn the engine off. Removal/Installation/Adjustment 15. With throttle resting against the dead idle screw, use the software to adjust the TPS 1. See Throttle Body, Removal. Sensor Actual voltage to 0.73 +/- .02 volts. 2. Remove two Phillips screws to release TPS See H of Figure 5-24.
  • Page 133 Section 5: Removal/Installation Figure 5-24 TPS Removal/Installation/Adjustment.

  • Page 134: Ho 2 Sensor

    Section 5: Removal/Installation h. With throttle resting against the dead idle Sensor screw, rotate the TPS until the output Removal voltage is 0.73 +/- 0.02 volts. 1. Remove access cover. See Access Cover/ i. Alternately tighten two TPS screws to 10- Blower Housing, Removal, steps 1-3.
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  • Page 136 Section 5: Removal/Installation Fuel Injector Fuel Injector Mechanical Diaphragm Schrader Valve Fuel Pump To Crankcase Vacuum Fuel Fuel Tank Tank Fuel Pump Module Inline Fuel Filter Figure 5-25 Typical Fuel Flow Diagram for Model 490000. Mechanical Diaphragm Fuel Pump Fuel Level Fuel Level Fuel Fuel...

  • Page 137: Mechanical Diaphragm Fuel Pump For Model 490000

    Section 5: Removal/Installation Mechanical Diaphragm Fuel Pump for Model 490000 Volumetric Test NOTES: • Position the fuel tank so that it is near level Perform a volumetric test to verify that the with the fuel pump. Do not place the gradu- proper amount of fuel is being delivered to the ated cylinder BELOW the fuel pump or engine.
  • Page 138 Section 5: Removal/Installation Fuel Injector Fuel Injector Inline Fuel Filter Marine Only Fuel Electric Lift Tank Fuel Pump Fuel Pump Module Inline Fuel Filter Figure 5-27 Typical Fuel Flow Diagram for Models 540000/610000. Electric Lift Fuel Pump Fuel Tank Fuel Level Graduated Inline Cylinder...

  • Page 139: Electric Lift Fuel Pump For Models 540000/610000

    Section 5: Removal/Installation Electric Lift Fuel Pump for Models 540000/610000 10. Measure the volume of fuel discharged into Volumetric Test the graduated cylinder. See the table be- Perform a volumetric test to verify that the low for the approximate amount of fuel that proper amount of fuel is being delivered to the should be discharged.
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  • Page 142 Quality Starts With A Master Service Technician 80021828-9/16 BRIGGS&STRATTON POST OFFICE BOX 702 CORPORATION MILWAUKEE, WI 53201 USA 414 259 5333 BRIGGSandSTRATTON.COM ©2016 Briggs & Stratton Corporation...

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