PO332 fault code on my 2003 Chevy Silverado Z71

[brodey19]

Hey guys! New to this forum because im looking for some advice here. Ive recently got a faulty code PO332 and something about an o2 sensor on a code reader. Now ive heard a knock sensor wont set off a check engine light but mine is on. Will a faulty o2 sensor give a knock sensor code?

[Duelin]

P0332 V8 Engine

Rear Knock Sensor (KS) Circuit Low Voltage The ECM detects a KS signal voltage that is less than typical engine noise level for at least 4 seconds

Probable Cause

1. Open or short circuit condition
2. Poor electrical connection
3. Knock sensor
4. ECM fault

[anumber1]

The knock sensors will set the CEL. Pretty common for the sensors or the wiring to them to become corroded.

 

An o2 sensor issue will set a different code.

 

You are going to need to check the codes again and be a bit more specific with what you find to really get any meaningful advice.

 

A po332 code is not related to an o2 code.

[kstruckcountry]

Most likely the issue is just the knock sensor... Water gets in the rear one. I did this recently, new sensors, harness, then siliconed the rubber plugs in. But I'd check the codes and know for sure.

[phwe9774]

P0332 is rear knock sensor low voltage. I had the same exact code a few months ago. I solved it by replacing the knock sensor and wiring harness. In total, cost me about $50 with everything shipped. Took me about 6 hours going very slowly

 

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