i bought a tpi setup for 150$ and it included the whole wiring harness from a 88 iroc. from the head lights to the tail lights. any one know where i can get a diagram of wich wires i can delete from the harness. im going to put the tpi in a s-10. and dont need the whole harness.

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92 z28 170,000 miles 14.20 on goodyear eagles before exhaust only mods k&n and slp 13/4 headers and dual 2 1/2 exhaust
87 trans am 12.20 on motor too many mods to list

 

My advise would be run it than disgard as you go, by process of elimination, or tape it to the rest of the wires for future refference. my opinion, because i don't know what you realy have as far as your dash or wiring goes. hope this will help.

 

what i have is a complete tpi setup and the complete wiring harness for the WHOLE car. i want to eleminate the wires not needed for the tuned port. i am going to put this in a non f body car or maybe in a s-10.

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92 z28 170,000 miles 14.20 on goodyear eagles before exhaust only mods k&n and slp 13/4 headers and dual 2 1/2 exhaust
87 trans am 12.20 on motor too many mods to list

 

You'll need to do what we did to wire the TPI motor into my '85 Monte. Get a GM Factory Electrical Service Manual for an '88 F-body (if that's where the motor came from) and go through that. You can trace the entire harness that way and work from there. You'll see what is needed and what isn't. From what I've heard, the '88-up F-bodies have other goodies integrated into the engine harness, so it may keep you busy.

Hope that helps!