87-93 mustang EFI wiring needed?

[Bronco73]

Do you need the engine and injector wiring or just the injector wiring for the EFI swap?

Of course I need the computer which the seller has but I need to know if I need both the engine and injector harness or just the injector harness. The parts are for the 87-93 mustangs.

Also what can I use from a 95 mustang, TB, injectors, fuel rail or anything else?

Just trying to find the cheapest approach with what's available local to me.

 

[Pedestrian]

You need all the wiring from the computer to the injectors. So, yes, both harnesses.

 

[Broncobowsher]

The '95 has a completely different style throttle body. Injectors are the same. Fuel rail should work but have not confirmed.

The mustang harnesses came in 2 parts. One side attached to the engine and the other to the body. The body side has the computer. Need both harnesses to run the EFI. The harness mating changed in '94. It is possible to use the harness off the '95 but it will need a bit of reworking. Change a couple of pins at the ECM and a few connectors for things like TPS and MAF changed as well. Not completely sure of all the differences. I know there is a way to revert the '95 style cars back to the old ECM because it is dumber and more consistant for drag racing. Something needed for bracket racing.

 

[Bronco73]

I didn't make it to look at the 95 car today but it is complete. Engine and all are still in the car. The 87-93 wiring and ECM are all the other seller has so I was wondering what I could use from the 95 if it was cheaper for me to go with the 87-93 wiring and ECM. Still trying to get prices from both sellers.

I have my final exam on Wed. I should be able to look at the 95 mustang on Friday. Following Monday I start two more summer classes and waiting to hear from a teacher for a third class so I need to try and get this EFI stuff before then if I can.

 

[av bronco]

There should be three wiring harnesses, the main, the engine and the o2 sensor harness.

 

[Bronco73]

I need to ask the seller about the 02 harness.