PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

1998 to 1999 conversion

Thread Tools
 
Search this Thread
 
Old Jul 2, 2024 | 08:06 AM
  #1  
Irvinmac3's Avatar
Thread Starter
Teching In
 
Joined: Jul 2024
Posts: 2
Likes: 0
Exclamation 1998 to 1999 conversion

hello everybody. i am working on 2 cars at the moment. car 1 is a 1998 camaro ss z28. the car was an automatic with an ls1. car number 2 is a 1999 camaro that had and ls1 t56 combo. I am taking the 1999 computer and putting it into the 1998 car. as most of you may already know my problem, the 1998 wiring harness has 3 connectors under the dashboard, as the 1999 has 2. so my question is, what all do i have to do to make the 1999 harness work in the 1998 car and what to i have to do to make the 1998 auto harness work in the 1999. im doing this swap because the car im building was an automatic and i bought a convertible car with a good 6 speed in it. i have seen a few forums that mentioned re-pinning the harness. i tried reading, and rereading them but i dont quite understand what wires im suppose to be moving and where to move them too. if anyone could guide me in the right direction or give an kind of advise that would be greatly appriciated. thanks, Irvin.

Reply




All times are GMT -5. The time now is 05:10 AM.

story-0
10 Reasons Daily Driving a Swap Project SUCKS! (& 1 Reason to Do It Anyway)

Slideshow: 10 reasons daily-driving a swap project might not be for you. Or is it?

By Michael S. Palmer | 2026-06-17 09:39:05


VIEW MORE
story-1
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-2
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-06-18 10:26:23


VIEW MORE
story-3
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-4
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-5
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-6
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-7
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-8
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-9
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