Originally Posted by komodo
^^ OH! My bad. Yeah, I had my sims on my post o2 sensors because of the x-pipe getting rid of the cats.
Why are you running pre-o2 sims?
i'm not i was just trying to figure out the diagram...
i'm saying the code that i get from the CEL, is for the heater circuit for one of the front o2 sensors... so i'm wondering if that has anythign to do with the sims...
the diagram you drew is of the sims and the rear o2 sensors correct?? your front ones are just normally installed correct??