LS1 Computer and Wiring Questions
LS1 Computer and Wiring Questions
Guys, One question as it relates to the stock wiring in a third gen; do you leave and retain the stock ecm and wiring harnesses coming from under the right side? My understanding is that the new LS ecm and harness replaces ALL functions for the motor and the drivers side stock harness that appears to tie into the fuse box is for all accesories???
Joined: Jul 1999
Posts: 876
Likes: 2
From: St. Louis
Car: RS
Engine: LS1
Transmission: T56
Axle/Gears: 9" for the ladies
Re: LS1 Conversion price lists here
Answers to this an other unrelated questions hijacked in to this thread found in the FAQ at the top of this forum.
So easy to find a person capable of an ls1 swap could do it.
So easy to find a person capable of an ls1 swap could do it.
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
There, now it's its own thread and no longer a hijack.
It's a "sticky", not FAQ. In the top section of this forum.
https://www.thirdgen.org/forums/ltx-...third-gen.html
It's a "sticky", not FAQ. In the top section of this forum.
https://www.thirdgen.org/forums/ltx-...third-gen.html
Supreme Member
Joined: Mar 2004
Posts: 2,519
Likes: 4
From: In the Garage
Car: Camaro
Engine: 6.2L
Transmission: T56
Re: LS1 Conversion price lists here

Good one.
Welcome aboard yozi just keep clicking and posting you'll figure it out soon enough. Invaluable info available on the boards. The how to's and modification levels are staggering
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Joined: Jul 1999
Posts: 876
Likes: 2
From: St. Louis
Car: RS
Engine: LS1
Transmission: T56
Axle/Gears: 9" for the ladies
Re: LS1 Computer and Wiring Questions
http://www.team3rdgen.com/modules/3rdGenLS1/Wiring.htm
leave the drivers side stuff
The whole ECM under the passenger side dash can go along with all that wiring coming out of it and up through the passenger fender. By the way that connector under the dash that used to plug in to the PCM can be used to trip relays if you want.
Last edited by Aaron91RS; Jun 24, 2009 at 10:48 AM.
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eightsixseven
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Dec 16, 2024 01:50 PM





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That helps a ton! I was confident on all the issues except the mess (in my mind) of the wiring. I really appreciate you taking the time to help!
