1G 90 engine harness with 91 ecu, ptm and coil pack?

[caseyk]

Im close to finishing up my 4g swapped mirage.

I guess basically think of it as a 1990 talon with a 91 4g63 swap with all sensors. The 90 harness has a few different plug ins compared to the 91.

Things I have finished wiring are the tps and the cas.
Now I believe im just stuck with the power transistor module and coil pack.
Ive done research for a few hours and I havent gotten a straight answer exactly what I need to do.

 

[19Eclipse90]

You'll need to obtain A) a '90 PTM and coil (or a '91+ harness, but I'm sure that's more than what you want to do right now) or B) a '91 PTM and coil harness connectors in order to make things work.

If B, then you can follow the http://www.dsmtuners.com/forums/articles-electrical-wiring/302812-1991-1994-ecu-swap-into-1990-dsm-ignition-wiring.html article to get things wired up.

 

[talon1979]

If you have a 91 coil pack and power transistor you will have to rewire the '90 harness to mimic the '91 plus style. Search for converting a '90 tach setup to a '91 plus style ignition. I have done it and it wasn't very hard. If I had more time I would search for the link.