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

harness blues...

Thread Tools
 
Search this Thread
 
Old Oct 10, 2008 | 04:17 PM
  #1  
fast400's Avatar
Thread Starter
Launching!
iTrader: (1)
 
Joined: Oct 2007
Posts: 277
Likes: 0
From: Germany
Default harness blues...

After reading all the great posts and stickies, I felt confident enough to tackle the harness....I'm still (a little) confident that I can do it, but I have a couple of questions to my 2006 5.3 (L59) truck harness.
1. Which two pinouts are used for the OBDII serial data signals? For the two ground wires...can I cross the ground on the plug, or does it have to be both ground wires coming to the plug?
2. Which pin #'s can I eliminate on plug C2, PCM (c1,c2), c152? I know what I must keep, just not sure what I can ditch. I'll be running pcm controlled a/c, evap stays, pcm controlled fans, and fuel level sensor (c152 pin K for ethanol purpose)?
3. I love the 1998 LS1 retrofit schematic. I'm using it as a reference, but it would be great if there's one specific to the truck harness. Is there?....I'd pay!
Reply
Old Oct 10, 2008 | 04:23 PM
  #2  
fast400's Avatar
Thread Starter
Launching!
iTrader: (1)
 
Joined: Oct 2007
Posts: 277
Likes: 0
From: Germany
Default

...one more add-on...
Which "vehicle speed signal" do I use for the speedo, the one from plug c152(ye/bk) or the one from plug c100 (gn/wh)?
Reply
Old Oct 10, 2008 | 07:53 PM
  #3  
durty's Avatar
Launching!
iTrader: (3)
 
Joined: Feb 2007
Posts: 202
Likes: 0
Default

i used www.lt1swap.com to pull the uneeded wiring from my 03 truck harness
Reply




All times are GMT -5. The time now is 02:10 AM.

story-0
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-1
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 | 2026-05-28 11:05:11


VIEW MORE
story-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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