Tbi to tpi.
Thread Starter
Junior Member
Joined: Apr 2017
Posts: 3
Likes: 0
Tbi to tpi.
I am swaping a 1991 camaro tpi in a 1992 c1500. Got fuel pressure, pump cycles and will start with Spray carburetor cleaner in throttle body and will run, but no injector pulse. Bought universal harness from speedway. Have ecm out of 1991 camaro. Thanks
Last edited by frankwebb1975; Nov 11, 2023 at 04:34 PM.
Joined: Nov 2008
Posts: 2,097
Likes: 177
From: Milwaukee
Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 HSR, T/A 6.6, empty
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
Re: Tbi to tpi.
Was the vats removed on the ecm? If not, it's looking for that signal at the moment
Member
Joined: Sep 2002
Posts: 253
Likes: 25
From: honolulu
Car: '86MCSS
Engine: 396 .030"
Transmission: M20
Re: Tbi to tpi.
I second the motion...your truck never came with VATS but the TPI of that era did. It can be programmed out of the PROM or the appropriate signal generator can be added to make the ECM happy.
Thread Starter
Junior Member
Joined: Apr 2017
Posts: 3
Likes: 0
Re: Tbi to tpi.
I was wondering that. I bought the bypass module. was looking for some guidance or a diagram to bypass vats with module, painless 64023. thanks
Last edited by frankwebb1975; Nov 11, 2023 at 06:21 PM.
Member
Joined: Sep 2002
Posts: 253
Likes: 25
From: honolulu
Car: '86MCSS
Engine: 396 .030"
Transmission: M20
Re: Tbi to tpi.
https://www.thirdgen.org/forums/elec...ts-bypass.html
I didn't read it myself but I think this will shed some light on the topic... lol
I didn't read it myself but I think this will shed some light on the topic... lol
Thread
Thread Starter
Forum
Replies
Last Post