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

Engine harness help

Thread Tools
 
Search this Thread
 
Old Sep 11, 2011 | 09:20 AM
  #1  
1mean96ss's Avatar
Thread Starter
12 Second Club
 
Joined: Aug 2006
Posts: 286
Likes: 0
From: St.Peters Mo
Default Engine harness help

Going to a LS motor in my 96' LT1 and im in the process of yanking the motor and harnes today, there is a purple wire with a white stripe that runs from the driver side to the connector for the optispark on the passenger side of the intake. does that wire disconnect any where or do i just need to un-pin it at the location.
Reply
Old Sep 11, 2011 | 10:45 AM
  #2  
Pocket's Avatar
TECH Addict
15 Year Member
iTrader: (22)
 
Joined: Apr 2009
Posts: 2,656
Likes: 149
From: NC
Default

If its outside of the harness, then its a repair or add-on. What difference does it make when doing a LS1 swap in a 4th gen

Repin the body connectors on the pass fenderwell and plug a 98-02 Fbody engine harness in directly
Reply
Old Sep 11, 2011 | 10:55 AM
  #3  
LS1MCSS's Avatar
TECH Junkie
iTrader: (18)
 
Joined: Jan 2006
Posts: 3,831
Likes: 8
From: Dover, Arkansas
Default

If it plugs into pin B on the opti, it goes to the pcm. It's for high resolution signal. That's the only purple/white wire I can find going to the opti-spark.
Attached Thumbnails Engine harness help-opti.jpg  
Reply
Old Sep 11, 2011 | 11:35 AM
  #4  
Pocket's Avatar
TECH Addict
15 Year Member
iTrader: (22)
 
Joined: Apr 2009
Posts: 2,656
Likes: 149
From: NC
Default

Correct, the only other ppl/wht wires in the entire are for the drivers HO2s. Point being it its external, its either an add-on or a mod, neither make the first bit of difference for a LSx swap as the whole harness is being removed
Reply
Old Sep 11, 2011 | 05:32 PM
  #5  
1mean96ss's Avatar
Thread Starter
12 Second Club
 
Joined: Aug 2006
Posts: 286
Likes: 0
From: St.Peters Mo
Default

yep it that high res. signal sweet so i dont have to mess with it thanks
Reply




All times are GMT -5. The time now is 05:49 AM.

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