Project: EFI SWAP What do I need to make it work?

[NineThrityONE]

Perhaps you have said but I've forgotten, what year and car did you pull the harness from?
There is some 1990 info in https://www.dsmtuners.com/threads/t...l-wiring-harness.412841/page-2#post-152709711 and some comparisons to later harnesses.

Im actually not sure, I didnt pull it my self. It does have the separate closed idle switch/cable (which is not on the billet throttle I installed) how else can I tell?

 

[NineThrityONE]

Ok So I got it to run continuously (just barely) last night, but not well. I checked and the White/sensor wire coming from the TPS did seem to show .5v now at the ECU plug. but im not sure if its reading it now or not.

So after I got it started, I adjusted the idle screw to open the throttle more, and doing that it kind of ran (the TPS voltage was showing .68v at that setting) it was weird though, the RPM would climb a few hundred, then it would come down and almost die, and the engine would slowly recover/adjust, and the cycle would repeat. and it woudl be missing a lot.

BUT, When I would first start the engine (even after it died) it would run ok for the first 8-10 sec.... then almost die and id have to hit the throttle, where the rpms would increase, but also be missing.

However! I found this wire was cut: (coming from the Maf)

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also I will install the O2 and see if that does anything.