Wire plug problem to ecu

[freddy junior]

Working on 86 rx7 that has 91 gtu motor and ECU. The 87 had no ecu. 87 Wire plug that goes to the right side of ecu won't fit. does anybody know if they sale converting plug or if anyone has a wire diagram showing plug for 87 & 91.

[black rocket]

ECU has to match with engine and tranny. Why don't you go with EMS which eliminate the prob. Secondly I sure wouldn't want to use them 20+ year old harnesses if I can help it.

Originally Posted by freddy junior Working on 86 rx7 that has 91 gtu motor and ECU. The 87 had no ecu. 87 Wire plug that goes to the right side of ecu won't fit. does anybody know if they sale converting plug or if anyone has a wire diagram showing plug for 87 & 91.

[freddy junior]

EMS does this mean going curb, and elimate fuel inj, now do i have to use a manual fuel pump.

[black rocket]

How are you with following a elec diagram? You can always make your own harness

[freddy junior]

thank you for the info, i'am alright looking at a wire diagram if i can find the right diagrams i need if not i will pull hole wire hernest out of 91 and put in 87 it will be the only thing i didn't change on the 87 yet.