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2002 gmc: service engine light..knock..sensors and the wiring harness…

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I have been here several...
I have been here several times I own a 2002 gmc sierra 6.0 1500 HD the service engine light is on reading 2 codes po332 and p0332/pd I have replaced both knock sensors and the wiring harness also plugs and wires truck runs fine and no abnormal noises can be heard please help my inspection is due thanks.
Submitted: 8 years ago.Category: GM
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Answered in 3 hours by:
6/12/2010
GM Mechanic: ironmike, ASE Master Tech replied 8 years ago
ironmike
ironmike, ASE Master Tech
Category: GM
Satisfied Customers: 3,452
Experience: 30 years L1, GM certified
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greetings,

did you use after market parts? did you drop one? did you clear the codes with a scanner after the repair?

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Customer reply replied 8 years ago
I used gm parts did not drop one and yes I cleared the codes with my code scanner
GM Mechanic: ironmike, ASE Master Tech replied 8 years ago

here is a test chart.

You will need to ohm the knock sensors,circuits and then check continuity from the knock sensor plug to the pcm.

graphic

graphic

good luck

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Customer reply replied 8 years ago
what should be the ks resistance be
GM Mechanic: ironmike, ASE Master Tech replied 8 years ago
93-107k ohms

Edited by ironmike on 6/12/2010 at 7:52 PM EST
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