Honda/Acura Engine Management System (EMS) Manual Installation Instructions

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Vehicle: 2000-2001 Acura Integra, 1998-1999 Acura 2.3CL, 1996-2000 Honda Civic.
Engine wiring harness: 1999-2002 Honda Accord V6 J30A1, 1999 Acura CL 3.0L J30A, 2001-2003 Acura CL 3.2L J32A1 (auto harness only), 1999-2003 Acura TL 3.2L J32A1, 2002-2003 Acura CL/TL 3.2L Type S J32A2 (auto harness only), 2002-2004 Honda Odyssey 3.5L J35A4.
The AEM Engine Management System (EMS) is the result of extensive development on a wide variety of cars. Each system is engineered for the particular application. The AEM EMS differs from all others in several ways. The EMS is a stand alone system, which completely replaces the factory ECU and features unique Plug and Play Technology, which means that each system is configured especially for your make and model of car without any jumper harnesses. There is no need to modify your factory wiring harness and in most cases your car may be returned to stock in a matter of minutes.
Wiring accessories to the EMS: Please follow this suggested wiring diagram when adding/retaining original accessories such as the speedometer, reverse lockout, UEGO gauges, MAP sensors, IAT sensors, or switches for use with the EMS. Note that wire polarity is not important for the Air Temperature sensor.
1) Install AEMTuner software onto your PC The latest version of the AEMTuner software can be downloaded from the AEMTuner section of the AEM Performance Electronics forums. Series 2 units are not supported by the older AEMPro tuning software. 2) Remove the Stock Engine Control Unit a) Access the stock Engine Control Unit (ECU). The location of the ECU on Acura Integra, Acura CL/TL, Honda Accord, and Honda Civic vehicles is behind the kick- panel on the passenger side of the vehicle. b) Carefully disconnect the wiring harness from the ECU. Avoid excessive stress or pulling on the wires, as this may damage the wiring harness. All connectors must be removed without damage to work properly with the AEM ECU. Do not cut any of the wires in the factory wiring harness to remove them. c) Remove the fasteners securing the ECU to the car body, and set them aside. Do not destroy or discard the original ECU, as it can be reinstalled easily for street use and troubleshooting. 3) Repin appropriate ECU pins a) For this application there is the potential need to repin some ECU pins. For the tested application only one pin was added. Since there was no reverse lockout solenoid activation on the automatic wiring harness, this pin was placed on ECU connector pin A3. b) Locate a small screwdriver (a precision 1.5mm wide flathead screwdriver is recommended) and carefully pry white plastic retainer using both slots in the retainer so it disengages vertically about 1mm as shown in the following pictures: