Engine harness question. Interior plug. Pics included!!

[Stainbox12]

I have a 90 Eclipse. and recently i got a 91 tach, 91 coil, 91 power transistor, 91 ISC, and soon a 91 TPS. I swapped the 90 harness because it was all messed up, and i found a good deal on a 91 harness. I swapped the pins for the ECU to use the 90 ECU. However, inside the car, there's 5 plugs, 3 go to ECU, 1 to Fuel pump relay, and the other one i assume goes to the ignition wiring. The 90 harness used to have 7 wires, but this 91, has 10 wires, there's a few extra ones on the 91 harness, so i was wondering, if i can use the 90 plug and splice the 91 harness to make it fit, excluding the other 3 wires. Here's some pics for reference. Thanks.

 

[Auto RS T]

I found these two threads pertaining to your problem. I also just excluded the 3 wires from the newer harness. My car runs and I drive it everyday, I have never looked furthur into the wire issue. Guess I need to add that to the list... Good luck, let us know if you come up with anything.

http://www.dsmtuners.com/forums/showthread.php?t=263740

http://www.dsmtuners.com/forums/showthread.php?t=181512