need to identify plug

[RogueGamer]

I am doing a DE to E swap, the wiring harness and ECU are out of a 93 and the car is a 89

what i am trying to figure out is a plug that is after the body plug and ecu plug and still under the dash on my DOHC wiring harness. The SOHC wiring harness doesnt have this and i cant find anywhere that it would go in the car

the 93 was a auto and the 89 is a manual if that matters at all

thanks for any help in advance

[Kraelic]

That connector goes to the automatic transmission's control unit, you can leave it undone in your manual 89. Your ECU may store some codes related to the auto though. Hasn't seemed to hurt mine, 91 DE into 89. Both auto and the plugs are not physically compatable. Also the colors and ECU pinouts don't line up either so I just left mine undone. Its not going to be auto much longer if jarcoinc.com can find me a ca18det clip =)

[RogueGamer]

thanks!