86 tpi engine harness
Joined: Dec 2004
Posts: 16,754
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: 86 tpi engine harness
If you have the alternator on the drivers side you might want to look at a 88-89 harness. The 89 harness needs to have the ninth injector tuned out of the ecm. No wiring for it. But with the vette l98 you should tune anyways. There might be differences between c100 you will have to verify and repin if needed.
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Joined: Mar 2019
Posts: 12
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From: Northern VA
Car: 1985 Z28
Re: 86 tpi engine harness
I still have the 85 c100 part of the harness so I was going to use that and use the vette ecm with an 88 camaro prom. I was thinking the alternator wiring is something I can just make up. I think the 88 89 harness has both harness all together?
Joined: Dec 2004
Posts: 16,754
Likes: 996
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: 86 tpi engine harness
There you go a 89 harness just compare c100
http://www.austinthirdgen.org/index.php?pid=19
http://www.austinthirdgen.org/index.php?pid=19
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Joined: Aug 1999
Posts: 5,261
Likes: 461
From: RI
Car: 1984 Camaro Berlinetta
Engine: LT1
Transmission: T56 6-speed
Axle/Gears: 4.11 LS1 Rear End
Re: 86 tpi engine harness
Ya',...... Using an 88 ECM and Serpentine Accessories,..... You want an 88 / 89 harness. 
82-87 cars used an ECM harness and a separate ENGINE harness, but in 88 they were both combined into 1 HUGE harness.

82-87 cars used an ECM harness and a separate ENGINE harness, but in 88 they were both combined into 1 HUGE harness.
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Joined: Nov 2018
Posts: 2
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From: Illinois
Car: 1986 IROC
Engine: Texas Speed LS 427
Transmission: 4L80
Axle/Gears: Hawks 8.8 3.73
Re: 86 tpi engine harness
I have a wiring harness I took out of my 86 IROC, it’s in good shape I also have the ECM.
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iroc_cragg
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Apr 16, 2003 07:20 AM












