i have a 02 chevrolet z71`5.3L with a Knock senors code reading.had both sensors replaced .check engine light came back on reading the same thing.used standard parts .What do I Need to do now to fix this problem

 

Marie, it might be best for you if you start your own topic.
I have marked mine as fixed so you may not get many people looking at it to respond.
Sorry I dont know how to troubleshoot an engine, just do the wrenching