Ok folks. I've been battling the dreaded P2135 code in a 2003 Z71 Tahoe for years. Changed everything I've read it could be except the actual complete harness.
I'm at that point now. I'm having trouble locating the OEM part number or a suitable aftermarket COMPLETE harness. From ECM, TAC...
Thank you sir. This is the stuff I need to see. Which balancer did you use and did your accessories from the 5.3 line up? I'll try to get a look at the oil vapor system you used. Please feel free to post up any other details you can think of.
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