Hey guys I have a 02 2500hd. I have code 327 and 332 after washing engine. I replaced both knock sensors and the harness but the codes both come back. I've installed new Ac delco plugs and fuel filter. I check continuity between the harness to the ecan and it was good. I'm just not sure what else to check. If anyone has any ideas I would greatly appreciate it. Thanks in advance !!!
is there corrosion in the knock sensor holes?
2008 GMC Sierra SLE....370ci LY6 with some goodiesSOLD
1995 C2500- LS1 swap with a mp112
build thread- http://www.ls1truck.com/forums/lsx-t...-ls1-swap.html
No. Thanks. I went to the dealership and had them diagnose it and they said it needed knock sensors and the harness. So I bought more new sensors and a harness from chrvrolet and installed. So far the light hasn't come back on. Kinda crazy the new ones from advance auto parts didn't fix the issue.
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