which bank is bank 1? driver side or passenger?

 

Passenger side .

 

thanks Brew. its funny. i pulled out all my o2 sensors except for the upstream one on bank 1, and i cleaned them. and wouldnt you now the one i didnt clean is the one having the problem

 

I believe it - That ones a PITA unless you have one of these -



But you still have to remove the pass side tire and inner fender well to get @ that pr^ck sometimes

Careful , they like to leak if the O2 bung is tweaked a little out of shape. I 've had to use Permatex RTV HH w/copper to seal them before.

BTW - The harness wires are sensitive @ the connectors and toward the tops of the O2's - Dielectric grease helps with that.

 

thanks. ill probably fix it tmorrow