I am new to the forum here and I am looking for some guidance. I am out of options as far as I know at this point.

I have a 2005 Silverado 5.3 flex fuel engine Z71, and I am having an issue with the bank 2 knock sensor. I have replaced sensors twice and wires, the engine only has 4k miles on it, the fuel pump was just changed this past weekend, and I only run 93 octane fuel. After all of this to no avail on the issue of the knock sensors, I can clear the code and it will be back on within 30 miles. I have no clue where else to look or what else I can do to resolve the issue, also I do not believe the PCM is failing because I have no other symptoms pointing to PCM failure. Any and all advice on this issue would be greatly appreciated as I am stumped currently

 

post in Silverado section and someone will help you.