So I just data logged my 02 sensors at idle (it’s been sitting around for a few years). Passed inspection yesterday with all monitors ready (except catalys….not ready). I logged my 02 for several minutes after cold start/idle….and noticed my post cat sensors started creeping up to the mid 8mv. As I said , cars been sitting around for about 10 years, it has about 95k (04). If my cats were bad the voltage post cat should go up and down like the precat no? Does this post cat high voltage indicate rich mix? I’m gonna try and hook up inpa /bmw scanner tonight and check it out….what should I look for in terms of fuel trim etc? Anything else I should be looking at? Car runs fine but it feels like it bogs down a bit under acceleration above 3-4krpm . Also I recently replaced starter so airbox came out . Could this be caused by dirty injectors from sitting on long /old fuel etc? Will try to clean this weekend. Any feedback is appreciated!
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