p0332/p0327 codes

2005 GMC C1500
17,000 MILES • 5.3L • V8 • 2WD • AUTOMATIC
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RAYBORN 62
  • MEMBER
  • 1 POST
I have change the knock sensors out and harness. the same codes keep popping up.
Oct 19, 2017 at 7:11 AM
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STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,144 POSTS
This sounds like it can be one of two problems, either you have a connection/wiring issue or the ECM is bad and needs to be replaced. The PCM will need to be programmed by a shop.

Here is a guide so you can double check the wiring.

https://www.2carpros.com/articles/how-to-check-wiring

There looks like there is 2 sensors did you replace them both?

Please let us know what happens.

Cheers, Ken
Oct 20, 2017 at 1:30 PM