Will LS3 engine harness work on an LS2? - Lateral-g Forums

67Ruckus · #1 11-04-2011, 01:20 AM

I have a 2006 CTS-V LS2/T56 that I'm prepping to put in my 67 Camaro. I have the E67 ECM, but just found out I won't be getting the harness for the pullout engine.
I've searched all over for aftermarket harnesses that use the E67 ECM with the 58x reluctor CTS-V LS2/T56. I'd like to modify a stock harness myself. My question is that will all the connectors on a 2010 LS3 harness hook up to the connectors on my CTS-V LS2? I've read that the 2010 LS3 uses the E67 ECM, so this seems like it may work.
Anybody have experience with these harnesses?

Thanks in advance,
67Ruckus

rfrankb4 · #2 11-04-2011, 08:08 AM

I do not know the answer to this question but if you are modifying the harness already it should not matter much. Any connectors that are different you can get from:

http://www.eficonnection.com/eficonn...ngineType.aspx

or ebay and swap them over. If the computer is the same you would just then need to get it flashed with the program from whichever set of sensors you end up using.