Knock Sensors on 2004 5.3 Revisited 2 years later

[DeePa]

All,

 

CEL popped on today, P0332, which I immediately knew were for the knock sensors. I repaired this once before, using new wiring, two new sensors, RTV'ing the hell out of the plugs, new intake gaskets, the whole thing.

 

We had a hell of a thunderstorm here in RI yesterday, and everything was absolutely drenched. The truck was not driven at all during it, but this was the first trip with it in about a week or so (1991 corvette is my summer DD), and the CEL came on after about 45 miles of driving.

 

I am thinking it got wet in there, and the water is messing with the signal being sent to the ECM. I am going to clear the code and see if it comes back, but I think a week or so of driving should dry everything out.

 

Am I missing something here? I used plenty of RTV around the sensor Plugs, and removed those useless foam front/rear intake seals that didn't do a damn thing.

 

Why would this ever come back on, let alone in two years? Is it more likely that once of the POS knock sensors I bought from AutoZone actually failed or is sending an innacurate reading due to being made in CHINA???

 

Any input would be greatly appreciated.

 

Thanks,

 

Mike

[txab]

Have you cleared the code and tried driving it. Sometimes a code thrown can be a fluke.