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Originally Posted by infiniti_4_life
Hey everybody, So today i was cruising on the highway 95 ish,  and out of no where I get a CEL. I drive over to autozone to have them read the code. The thing said Bank 1 running rich...? I think it means cylinder 1 but could be the manifold runner #1... I dont know.
I've had an Injen CAI along with IMG and Throttle body Gaskets for about 6 months now with no problems. Just wondering what could be causing it to run rich all the sudden. I'm just glad its nothing major... Any thoughts? |
Bank one is the only O2 sensor you have on a 4cyl engine (before the cat). If you had a V6 or V8 engine with two exhaust mainfolds there would be two O2 sensors before the cat and this would tell you which one was reading rich (bank 1 or bank 2).