Civic-EG.com Forum 3.3.1

- Sat Apr 14, 2012 12:34 am #301771 I recently got a Apexi Power FC for my OBD1 94 civic ex manual ej1. The FC is OBD2A. Im making a converstion harness of my own from two plain extension harness's one OBD1 the other OBD2A

Going by two ecu pinouts and matching each sensor wire accordingly the OBD1 has 2 ICM (ignition control module) wires at pins 21 & 22 connector A (largest) where as the OBD2A system only has 1 ICM wire at pin 20 connector A (largest)

Anyone have any idea what i should do here? just use one ICM wire or the 2 and join into the obd2 ICM wire?

- Thu Apr 19, 2012 9:25 pm #302344 Well i sorted this myself, for future reference to anybody converting the 2 OBD1 ICM wires are joined and connected too the OBD2's single ICM wire

- Thu Apr 19, 2012 11:18 pm #302354 lol this is one of those were you answer your own question good to know tho!!

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Check out my build thread!!!!

- Fri Apr 20, 2012 9:13 am #302397 Ha i was sure a few people in the past have done this with all the converstions been done and the likes