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Manual
Infinity Series 3 Marine Adapter
THIS PRODUCT HAS LEGAL RESTRICTIONS.
WARNING! THIS IS A RACE ONLY PRODUCT MANUFACTURED AND SOLD FOR INSTALLATION ON VEHICLES DESIGNED TO BE USED
SOLELY FOR COMPETITION PURPOSES. ONCE THIS PART IS INSTALLED, THE VEHICLE MAY NEVER BE USED, OR REGISTERED
OR LICENSED FOR USE, ON A PUBLIC ROAD OR HIGHWAY. IF YOU INSTALL THIS PART ON YOUR VEHICLE AND USE THE VEHICLE
ON A PUBLIC ROAD OR HIGHWAY, YOU WILL VIOLATE THE CLEAN AIR ACT AND MAY BE SUBJECT TO PERSONAL CIVIL OR
CRIMINAL LIABILITY, INCLUDING FINES OF UP TO $4,819 PER DAY.
IT IS THE RESPONSIBILITY OF THE INSTALLER AND/OR USER OF THIS PRODUCT TO ENSURE THAT IT IS USED IN COMPLIANCE
WITH ALL APPLICABLE LAWS AND REGULATIONS. IF THIS PRODUCT WAS PURCHASED IN ERROR, DO NOT INSTALL AND/OR USE
IT. THE PURCHASER MUST ARRANGE TO RETURN THE PRODUCT FOR A FULL REFUND.
THIS POLICY ONLY APPLIES TO INSTALLERS AND/OR USERS WHO ARE LOCATED IN THE UNITED STATES; HOWEVER
CUSTOMERS WHO RESIDE IN OTHER COUNTRIES SHOULD ACT IN ACCORDANCE WITH THEIR LOCAL LAWS AND REGULATIONS.
WARNING!
Improper installation and/or adjustment of this product can result in major engine/vehicle damage. For
technical assistance visit our dealer locator to find a professional installer/tuner near you.
Note: AEM holds no responsibility for any engine damage or personal injury that results from the misuse
of this product, including but not limited to injury or death.
AEM Performance Electronics, 2205 126th Street Unit A, Hawthorne, CA 90250
MEFI4 30-3829
STOP!
READ THIS BEFORE INSTALLING/USING!
AEM Performance Electronics
Phone: (310) 484-2322 Fax: (310) 484-0152
http://www.aemelectronics.com
Instruction Part Number: <%DOCNUMBER%>
Document Build 2/8/2021
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Summary of Contents for AEM Infinity 3 Series
- Page 1 Note: AEM holds no responsibility for any engine damage or personal injury that results from the misuse of this product, including but not limited to injury or death.
- Page 2 Double Click on the following image to open a copy of the original brochure. The AEM 30-3829 adapter harness is designed to adapt an Infinity Series 3 ECU to an existing MEFI-4 engine harness. The Infinity Series 3 ECU and 30-3829 adapter harness combination will not solve existing problems.
- Page 3 © 2021 AEM Performance Electronics...
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Page 4: Recommended Accessories
30-0310 / X-Series Inline Wideband UEGO AFR Controller ECU Connectors The Infinity ECUs use the MX123 Sealed Connection System from Molex. AEM strongly recommends that users become familiar with the proper tools and procedures before attempting any modifications or additions to these connector housings. The entire Molex user manual can be downloaded direct from... - Page 5 These wires MUST be wired in a twisted pair configuration with a shield. The shield should be terminated to chassis ground at ONE END of the lead while the other end is left unterminated. Failure to shield these wires with proper shield © 2021 AEM Performance Electronics...
- Page 6 Failure to address this will result in the relay becoming the fuse, rather than the fuse in the circuit. Determining ECU Location · It is recommended that the ECU be placed in an environment that does not expose it to temperatures above 85° Celsius (160F). © 2021 AEM Performance Electronics...
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Page 7: Harness Installation
Harness Installation Disconnect the MEFI4 Harness from the MEFI controller. Remove the MEFI Controller. Review of the MEFI engine harness. J1 has a Black TPA as shown below. J2 has a Clear TPA as shown below. © 2021 AEM Performance Electronics... - Page 8 Marine Harness Connect J1 with the AEM adapter harness with black wires. Connect J2 with the AEM adapter harness with white wires. © 2021 AEM Performance Electronics...
- Page 9 Connect the73 Pin connector to the Series 3 ECU. © 2021 AEM Performance Electronics...
- Page 10 Marine Harness © 2021 AEM Performance Electronics...
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Page 11: Harness Layout
Power distribution relay Lambda1 0-5V analog to ECU Analog 18 input Lambda2 0-5V analog to ECU Analog 19 input HEI distributor interface. Default Distributor setup for HEI. Remove and replace with jumper for non-HEI setups © 2021 AEM Performance Electronics... - Page 12 SIG GND (ANALOG SENSOR GROUND) C1-24 J2-16 CRANKSHAFT POSITION SENSOR HALL C1-25 J2-32 CAMSHAFT POSITION SENSOR HALL C1-26 J2-20 EXHAUST TEMP S/W C1-27 C5-6 DIGITAL 3 (FLEX FUEL) C1-28 C1-29 C5-9 DIGITAL 5 (CLUTCH SWITCH) C1-30 © 2021 AEM Performance Electronics...
- Page 13 LOWSIDE 7 (EOP LAMP) C1-56 J1-27 LOWSIDE 6 (MIL LAMP) C1-57 C10-11 LOWSIDE 5 (HEI BYPASS) C1-58 C1-59 C1-60 C1-61 C1-62 J1-11 INJECTOR B (PEAK AND HOLD) C1-63 J1-26 INJECTOR A (PEAK AND HOLD) C1-64 C1-65 © 2021 AEM Performance Electronics...
- Page 14 J1-4 C1-48 ANALOG 16 INPUT INPUT J1-5 FUEL PUMP FUEL PUMP J1-6 C1-72 FUEL PUMP RELAY RELAY RELAY J1-7 J1-8 C1-53 LOWSIDE 9 BUZZER BUZZER CHECK GAUGES CHECK GAUGES J1-9 C1-54 LOWSIDE 8 LAMP LAMP © 2021 AEM Performance Electronics...
- Page 15 J1-30 C1-4 IAC 2A IAC COIL A LOW IAC COIL A LOW J1-31 C1-6 IAC 1B IAC COIL B HIGH IAC COIL B HIGH J1-32 C1-42 FUEL PRESSURE DIAGRAM AS VIEWED FROM WIRE ENTRY SIDE! © 2021 AEM Performance Electronics...
- Page 16 IGNITION FEED IGNITION FEED EXHAUST TEMP J2-20 C1-26 DIGITAL 2 SWITCH INPUT IAT SENSOR J2-21 C1-38 INLET AIR TEMP SIGNAL J2-22 THROTTLE TP SENSOR TP SENSOR J2-23 C1-40 POSITION SIGNAL SIGNAL J2-24 J2-25 J2-26 J2-27 © 2021 AEM Performance Electronics...
- Page 17 C2 - FLASH ENABLE Wire Gauge Destination Function Installer Notes Color C2-1 C1-36 FLASH ENABLE C2-2 SP2-R PERM +12V DIAGRAM AS VIEWED FROM WIRE ENTRY SIDE! C3 - LAMBDA 1 Wire Gauge Destination Function Installer Notes Color © 2021 AEM Performance Electronics...
- Page 18 C4-2 SP4-L SENSOR GROUND C4-3 DIAGRAM AS VIEWED FROM WIRE ENTRY SIDE! C5 - AUX Wire Gauge Destination Function Installer Notes Color C5-1 SP6-L FUEL PRESSURE C5-2 C1-39 ANALOG TEMP 3 C5-3 C1-23 SENSOR GROUND © 2021 AEM Performance Electronics...
- Page 19 C1-46 ANALOG 11 DIAGRAM AS VIEWED FROM WIRE ENTRY SIDE! C6 - AEMNET Wire Gauge Destination Function Installer Notes Color C6-1 C1-12 CAN HI C6-2 C1-13 CAN LO C6-3 SP3-L VBATT +12V C6-4 SP1-L GROUND © 2021 AEM Performance Electronics...
- Page 20 DIAGRAM AS VIEWED FROM WIRE ENTRY SIDE! R1 - MAIN EFI RELAY Wire Gauge Destination Function Installer Notes Color SP2-L PERM +12V C1-7 MAIN RELAY CONTROL SP2-L PERM +12V SP3-L ECU +12V DIAGRAM AS VIEWED FROM WIRE ENTRY SIDE! © 2021 AEM Performance Electronics...
- Page 21 C1-51 Wire Gauge Destination Function Installer Notes Color J2-1 R1-30 R1-86 C1-34 C2-2 Wire Gauge Destination Function Installer Notes Color R1-87 J2-17 C5-8 C6-3 C1-19 C1-35 Wire Gauge Destination Function Installer Notes Color J2-3 J2-18 © 2021 AEM Performance Electronics...
- Page 22 1A/1B and 2A/2B ECU outputs. Supports Bi-Polar stepper motors only. C1-4 Stepper 2A Automotive, Programmable Be sure that each internal coil of the Stepper Driver, up to 28V and stepper motor are properly paired © 2021 AEM Performance Electronics...
- Page 23 0-5V Falling edge fire. DO NOT connect directly to coil primary. Must use an ignitor OR CDI that accepts a FALLING edge fire signal. C1-16 Coil 6 25 mA max source current 0-5V Falling edge fire. DO NOT © 2021 AEM Performance Electronics...
- Page 24 See Setup Wizard page "Input Dig6_Duty with ground or floating Function Assignments" for setup switches. options. C1-31 Digital 7 10K pullup to 12V. Will work See Setup Wizard page "Input with ground or floating Function Assignments" for setup © 2021 AEM Performance Electronics...
- Page 25 12 bit A/D, 100K pullup to 5V Default Manifold Pressure Sensor input. 0-5V analog signal. Use +5V Out pins as power supply and Sensor Ground pins as the low reference. Do not connect signals referenced to +12V as this can permanently © 2021 AEM Performance Electronics...
- Page 26 Sensor Ground pins as the low reference. Do not connect signals referenced to +12V as this can permanently damage the ECU. See Setup Wizard page "Input Function Assignments" for setup options. © 2021 AEM Performance Electronics...
- Page 27 No pullup C1-57 Lowside 5 Lowside switch, 2A max with See Setup Wizard Page "Output internal flyback diode. Function Assignment" for setup Inductive load should NOT options. have full time power. © 2021 AEM Performance Electronics...
- Page 28 Function Assignment" for setup Inductive load should NOT options. have full time power. No pullup C1-70 Lowside 2 Lowside switch, 1.7A max, See Setup Wizard Page "Output NO internal flyback diode. Function Assignment" for setup options. © 2021 AEM Performance Electronics...
- Page 29 Stepper 1B Automotive, Programmable Be sure that each internal coil of the Stepper Driver, up to 28V and stepper motor are properly paired ±1.4A with the 1A/1B and 2A/2B ECU outputs. Supports Bi-Polar stepper motors only. © 2021 AEM Performance Electronics...
- Page 30 C1-34 before this input is triggered. C1-19 Main Relay Power 12 volt power from relay 12 volt power from relay. Relay must Input be controlled by +12V Relay Control signal, pin C1-7 above. © 2021 AEM Performance Electronics...
- Page 31 Battery Perm Power Dedicated power Full time battery power. MUST be management CPU powered before the ignition switch input is triggered (See C1-18). C1-35 Main Relay Power 12 volt power from relay 12 volt power from relay. Relay must © 2021 AEM Performance Electronics...
- Page 32 12 bit A/D, 100K pullup to 5V 0-5V analog signal. Use +5V Out pins as power supply and Sensor Ground pins as the low reference. Do not connect signals referenced to +12V as this can permanently © 2021 AEM Performance Electronics...
- Page 33 Sensor Ground pins as the low reference. Do not connect signals referenced to +12V as this can permanently damage the ECU. See the Setup Wizard "Input Function Assignments" page for options. © 2021 AEM Performance Electronics...
- Page 34 For use with high impedance Injector 6 (10-15 ohms) injectors only, 1.7A max. C1-60 Injector 4 For use with high impedance Injector 4 (10-15 ohms) injectors only, 1.7A max. C1-61 Injector 2 For use with high impedance Injector 2 © 2021 AEM Performance Electronics...
- Page 35 No pullup C1-72 Lowside 0 Lowside switch, 2A max, NO See Setup Wizard Page "Output internal flyback diode. Function Assignment" for setup options. No pullup C1-73 Battery Ground Battery Ground Connect directly to battery ground © 2021 AEM Performance Electronics...
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Page 36: 12 Month Limited Warranty
Any AEM electronics product can be returned for repair if it is out of the warranty period. There is a minimum charge of $50.00 for inspection and diagnosis of AEM electronic parts. Parts used in the repair of AEM electronic components will be extra. AEM will provide an estimate of repairs and receive written or electronic authorization before repairs are made to the product.
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