I was searching and ran across your talk about modifying your own TPI harness. I am planning to put a 305tpi out of an 1986 IROC into my 1989 s10 prostreet. I someone might be able to help me with a wire schematic for TPI. The information you have on TBI is great. I hope you might have the same kind on information for TPI. Thanks in advance. Jeff
Here are pinouts from the ECM. This is for '89. Disregard my marks.
Last edited by BurgerWorld; 09-06-2013 at 07:19 AM.
Get your ECM number and then look through this thread:
http://www.gearhead-efi.com/Fuel-Inj...ams-Tuner-Info!
May want to do a ECM swap at same time to get away from the MAF system and go Speed Density, like a 1227730 and $8D ?
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
IF it will help, I have uploaded many wiring diagrams and a specific pin list for changes from my Elky swap. Go to my website ( see signature) and visit the TPI page.
'85 SS El Camino, Gm Crate 350 L31, Vortec heads,TPI.
https://sites.google.com/site/darbyselky/home
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