Generation IV External Engine LS2 | LS3 | LS7 | L92 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Wiring harness issue

Thread Tools
 
Search this Thread
 
Old Aug 30, 2025 | 03:36 PM
  #1  
Mattyc's Avatar
Thread Starter
Teching In
Liked
Loved
 
Joined: Sep 2022
Posts: 31
Likes: 3
Default Wiring harness issue

Evening folks I have a dilemma!
I stupidly purchased a 2005-2008 ly6 wiring harness for my ls swap ( 2010 ly6 ) not thinking that it might cause me harness plug/sensor problems!
some of the sensor plugs from the 2005-2008 harness are completely different from the 2010 ly6 engine. i.e cam sensor, oil pressure sensor and possibly the map and maf! I have changed the front cover as I have done a vvt delete and have done a cam and ls2 sprocket!
I was going to change my sensors for new ones so i wondered if i can either change all the sensors to suite the 2008 harness or, change the harness plugs to suite 2010 sensors!
what would be my best option?
thanks in advance!!
Reply
Old Sep 4, 2025 | 08:33 PM
  #2  
Bbknucks's Avatar
TECH Regular
Photogenic
Photoriffic
Shutterbug
 
Joined: Dec 2022
Posts: 444
Likes: 158
Default

Make the harness/sensors match the ecm you are using
Reply
Old Sep 4, 2025 | 08:50 PM
  #3  
rsz288's Avatar
TECH Resident
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2008
Posts: 828
Likes: 12
From: Right here, right now!
Default

Originally Posted by Bbknucks
Make the harness/sensors match the ecm you are using
Ditto that. Sensors best to match the ECM (E38?). Making assumption that your LS2 cam sprocket is a 4x & beige sensor, generally different cam sensor connectors depended on whether there was an extension harness involved from the cam sensor down to the oil pan level.

Oil pressure connector/sensor changed for 09.

Is MAP on engine a Bosch?

Any pics on what you have?
Reply
Old Sep 4, 2025 | 08:55 PM
  #4  
Mattyc's Avatar
Thread Starter
Teching In
Liked
Loved
 
Joined: Sep 2022
Posts: 31
Likes: 3
Default

Originally Posted by rsz288
Ditto that. Sensors best to match the ECM (E38?). Making assumption that your LS2 cam sprocket is a 4x & beige sensor, generally different cam sensor connectors depended on whether there was an extension harness involved from the cam sensor down to the oil pan level.

Oil pressure connector/sensor changed for 09.

Is MAP on engine a Bosch?

Any pics on what you have?
There's actually been a small development since I posted this, the company that supplied the harness has actually offered to exchange it on my dime ( postage ) and send me a new and correct harness. So I think im out of the woods for now!

Thanks for the response though 👍🏻
Reply
Old Sep 4, 2025 | 09:42 PM
  #5  
rsz288's Avatar
TECH Resident
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2008
Posts: 828
Likes: 12
From: Right here, right now!
Default

Originally Posted by Mattyc
There's actually been a small development since I posted this, the company that supplied the harness has actually offered to exchange it on my dime ( postage ) and send me a new and correct harness. So I think im out of the woods for now!

Thanks for the response though 👍🏻
Great outcome 👍
Reply




All times are GMT -5. The time now is 10:09 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE