i have this code. i was thinking about changing the knock sensor. after doing some research, i can't tell whick knock sensor is bank 2. also do i have to change the intake manifold gaskets or are they o-ring type gaskets.

thanks in advance

 

I think 332 is the rear and 327 is the front. You should change both sensors while you're in there, and the wire too. The manifold "gaskets" are built-in the manifold.

 

thanks predator

 

My pleasure. Be careful routing the KS wire so you don't crush it under the intake. Also make an RTV "dam" around the knock sensors to protect them from moisture, and remove the square piece of foam under the intake (as stated in the GM TSB).

 

i filled up the tank yesterday and the check engine light went out. i guess it was some bad gas.