Engine Wiring Harness?
Melting Slicks
Joined: Aug 2004
Posts: 2,920
Likes: 229
From: Oakbank Manitoba
Best bet would be a used harness from a wrecked car. Many available from EBay wrecking yard vendors. There are subtle differences over the years so make sure it comes from the exact year of your car.
Thread Starter
Intermediate
Joined: Jun 2014
Posts: 45
Likes: 2
Thanks for the reply. Was hoping to find new but if I have to go with used, then I’ll just have to do that I guess. I didn’t know there were changes throughout the C6 model year, at least from 08 and up, but that helps because I would have likely bought one that didn’t work, so thank you.
Melting Slicks
Joined: Aug 2004
Posts: 2,920
Likes: 229
From: Oakbank Manitoba
There are small differences in the model years. The 05 has a completely different ECM. The Maf and Map sensors changed in later years and the oil pressure sensor might have changed as well. Dry sump equipped engines will have an Oil temp sensor in the lower side of the oil tank. They do not have the oil level sensor in the oil pan. Stay away from the ZR1 engine harness as it has many differences including the ecm.
New OEM engine harness has been out of production for many years. Try to find a used harness with lower mileage. What year car? I can keep my eye out for you.
I think I still have a brand new OEM engine harness from a 09 Corvette but I might have started to modify it for stand alone us. It's been in storage for a few years.
New OEM engine harness has been out of production for many years. Try to find a used harness with lower mileage. What year car? I can keep my eye out for you.
I think I still have a brand new OEM engine harness from a 09 Corvette but I might have started to modify it for stand alone us. It's been in storage for a few years.
Last edited by KENS80V; Jun 6, 2026 at 10:05 AM.
Thread Starter
Intermediate
Joined: Jun 2014
Posts: 45
Likes: 2
There are small differences in the model years. The 05 has a completely different ECM. The Maf and Map sensors changed in later years and the oil pressure sensor might have changed as well. Dry sump equipped engines will have an Oil temp sensor in the lower side of the oil tank. They do not have the oil level sensor in the oil pan. Stay away from the ZR1 engine harness as it has many differences including the ecm.
New OEM engine harness has been out of production for many years. Try to find a used harness with lower mileage. What year car? I can keep my eye out for you.
I think I still have a brand new OEM engine harness from a 09 Corvette but I might have started to modify it for stand alone us. It's been in storage for a few years.
New OEM engine harness has been out of production for many years. Try to find a used harness with lower mileage. What year car? I can keep my eye out for you.
I think I still have a brand new OEM engine harness from a 09 Corvette but I might have started to modify it for stand alone us. It's been in storage for a few years.
Thread Starter
Intermediate
Joined: Jun 2014
Posts: 45
Likes: 2
all the connectors are crumbling when touched. Had to replace some sensor ends and all the injector plugs are held on with tie wraps. The covering over the wiring is unraveling. Too many heat cycles I guess. 120k miles.
