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

LS1 wiring harness help needed

Thread Tools
 
Search this Thread
 
Old Jan 10, 2014 | 01:18 PM
  #1  
66 Cruiser's Avatar
Thread Starter
Teching In
 
Joined: May 2011
Posts: 15
Likes: 0
Default LS1 wiring harness help needed

I have an LS1 in a project chevelle purchased without any wiring or ECM. The engine is from a 1998 Camaro. I have been told a computer with the 12200411 code will work along with a harness from a 99- 02. I'm still concerned about this one year only LS engine. Any insight will be appreciated. I did a search but couldn't get my question answered. I am having trouble finding an ECM for a 1998 and would prefer the update without a major problem.
Reply
Old Jan 10, 2014 | 02:04 PM
  #2  
Burken01's Avatar
TECH Addict
20 Year Member
iTrader: (88)
 
Joined: Mar 2005
Posts: 2,925
Likes: 14
From: Anaheim, Ca
Default

Originally Posted by 66 Cruiser
I have an LS1 in a project chevelle purchased without any wiring or ECM. The engine is from a 1998 Camaro. I have been told a computer with the 12200411 code will work along with a harness from a 99- 02. I'm still concerned about this one year only LS engine. Any insight will be appreciated. I did a search but couldn't get my question answered. I am having trouble finding an ECM for a 1998 and would prefer the update without a major problem.
2 options

Find a 98 harness + PCM and everything will mate up

Or use a 0411 PCM + 99-02 ls1 harness - if you choose this route all you have to do is change the coolant temp sensor on the driverside head to the 99-02 version since the 98's used a 3 wire...

And depending if you get a 01-02 engine harness they won't have the connectors for the EGR/AIR assembly since it was deleted starting in 01

But now would be the time to delete and cap off the EGR hole on the intake anyway..
Reply




All times are GMT -5. The time now is 08:44 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