Dtc P0351 Cylinder 1 Ignition Coil Circuit Open Or Grounded (Non-Scan Diagnostics) - Briggs & Stratton Vanguard EFI 380000 Repair Manual

DTC P0351 Cylinder 1 Ignition Coil Circuit Open or Grounded (Non-Scan Diagnostics)

Step
1 1. Disconnect and reconnect ignition coil and ECM connectors.
2. Install Service Power Supply Harness (Part No. 847252).
3. Clear codes.
4. Disconnect and reconnect service power supply connector.
5. Does DTC return?
2 1. Obtain two Briggs & Stratton Spark Testers (Part No. 19368).
2. Install spark testers in line with high tension leads and spark plugs.
3. Crank engine and look for spark in tester windows.
4. Is spark observed?
3
1. Check ignition coil harness for damaged wires and faulty connections.
2. Is a problem found?
4 1. Back probe terminal J1 (White wire) of ECM connector.
2. Connect terminal J1 back probe to red meter test lead on DVOM.
3. Connect probe of black meter test lead on DVOM to cylinder 1 ignition coil spade terminal.
4. Set DVOM to read resistance.
5. Observe resistance on DVOM.
6. Is reading 0.1 ohms or less?
Action
Ignition Coil Harness (Part No. 846691)
and Spark Tester (Part No. 19368)
Yes No
Go to step 2. Problem corrected.
Go to step 3. See Vanguard
OHV V-Twin
Repair Manual.
Repair. Go to step 4.
Check ignition system. Go to step 5.
See Vanguard OHV V-
Twin Repair Manual.
Continued...
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