Hello,

Unfortunately, I have a long-lasting problem with one of my knock sensors.
I initially replaced both of them due to the typical problem of it corroding due to moisture getting to the sensors. Unfortunately, after both were replaced, the error P0332 (Knock Sensor 2 Circuit Low) still occurred.
After some research, I found out that it is absolutely recommended to use original ACDelco sensors and replaced them again and even checked their function with a friend's oziloscope beforehand.

Unfortunately, the error still occurred afterwards...
I followed the complete workshop guide, measured the cables accordingly and finally even replaced the PCM as a last resort.

Unfortunately, the error is still occurring and I don't know what to do next.

 

The truck is a 2WD 2004 Chevy Silverado with a 4.8L.