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Help! Keeps throwing P0327 code...driving me nuts

Old Jul 4, 2010 | 03:00 PM
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Originally Posted by Marc 85Z28
I know I said it before. The PCM will NOT set a DTC because of false knock. It is there due to an ELECTRICAL fault.

And a soda can with some cardboard? I've heard lots of remedies for the banging y-pipe issue, but this is new to me. If you do not want to properly fix the problem with new engine mounts, a worm drive hose clamp with some EGR/emissions hose on it works well.
I believe you. And that's what I always thought, but some people were leading me to believe otherwise.

I did get the y-pipe fixed. I had it heated up and flattened a little out of the way. No more banging. That pipe was literally just millimeters away from the frame...I think my motor mounts are good for a little while longer.

But obviously the light it still on. Still p0327. The shop says they went through GM procedures and determined that the knock sensors were working. It must be in the wiring to the PCM or the PCM itself I suppose. I'm thinking PCM is good though, they said there was no corrosion visible on it.

Either way, I'm going to see what they say now that the exhaust is fixed.
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