2005 LS2 Engine Harness In 2008 LS3 Car?
Thread Starter
Cruising
Joined: Nov 2019
Posts: 12
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From: Edmond, Oklahoma
2005 LS2 Engine Harness In 2008 LS3 Car?
Hi everyone. Due to high mileage and Texas heat, the engine harness on my 2008 m6 has degraded into a state of disrepair. It is badly heat aged and fossilized. I have the opportunity to purchase a good condition harness from a 2005. Apart from the different connectors for the oil pressure sensor and maf, could this harness effectively be dropped in and have the car start right up?
Advanced
Joined: Jan 2008
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ECM connectors/pinouts are different. LS3 E38 ECM's have 2 connectors while the E40 ECM has 3. You would need to verify the black connector and gray connector wiring configuration matches.
Crank sensor and cam sensor connectors may be different, not certain.
Crank sensor and cam sensor connectors may be different, not certain.
Last edited by vague; Mar 28, 2021 at 06:45 PM.
Race Director
Joined: Dec 2013
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Hell, just from base to Z51 cars have different connectors on the C184 and C180 as well.
So on that note, either find the right wiring harness for the car year and module, or have one made to fit the car year and model isntead.
Of the two, the later it often better, since you can get not only slightly larger gauge wire used, but silicone shield for close to the price of a new OEM harness.
So on that note, either find the right wiring harness for the car year and module, or have one made to fit the car year and model isntead.
Of the two, the later it often better, since you can get not only slightly larger gauge wire used, but silicone shield for close to the price of a new OEM harness.
Thread Starter
Cruising
Joined: Nov 2019
Posts: 12
Likes: 1
From: Edmond, Oklahoma
Thank you both for the information. It appears the changes are more extensive than I expected. Do you have any recommendations for harness builders before I do my own search for one?
Team Owner
Joined: May 2006
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From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
https://www.ebay.com/itm/2008-C6-Cor...YAAOSwijRdysrj
https://corvettesalvage.com/product/...-harness-2008/
Not cheap but perhaps this is what you are searching for -
Thanks,Matt
https://corvettesalvage.com/product/...-harness-2008/
Not cheap but perhaps this is what you are searching for -
Thanks,Matt
