Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

LS2 wiring harness repair / replace

Thread Tools
 
Search this Thread
 
Old Oct 22, 2020 | 10:57 PM
  #1  
Crash68's Avatar
Thread Starter
Teching In
 
Joined: Oct 2020
Posts: 22
Likes: 4
Default LS2 wiring harness repair / replace

I have an LS2 in a 71 camaro and have experienced an intermittent issue where codes P0123 & P0223 related to the TB & Pedal... results in a rough idle, no connection of the pedal.

Have resolved the issue by pulling connections to inspect and replugging followed by clearing the codes... Problem is, it might come back so I'm wondering what would be the best way to perhaps address the wiring associated with these codes (TB/Pedal) without buying a new harness?

It's only happened twice, but it is something that may get worse and I would like to resolve with some confidence. I couldn't find an obvious wire cut/short.
Reply
Old Oct 23, 2020 | 12:41 AM
  #2  
G Atsma's Avatar
TECH Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2016
Posts: 22,291
Likes: 3,616
From: Central Cal.
Default

Often the mere act of unplugging and re-plugging connections will solve a problem or more by establishing a better contact, especially with a fresh application of dielectric grease.
Reply
Old Oct 23, 2020 | 05:36 AM
  #3  
Michael Yount's Avatar
TECH Junkie
10 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Jun 2015
Posts: 3,125
Likes: 501
Default

To G Atsma's point (and following up on your post in the other thread) -- I think I'd drive it a bit and see how it holds up before jumping on the new-harness bandwagon.
Reply
Old Oct 23, 2020 | 11:28 AM
  #4  
Crash68's Avatar
Thread Starter
Teching In
 
Joined: Oct 2020
Posts: 22
Likes: 4
Default

Thanks. I hadn't thought about some dielectric grease to help the connections. I think I'll go back and do that and driver it.
Reply




All times are GMT -5. The time now is 10:28 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE