I'm not sure how to explain this such that you'll understand. I really think you need to do a search.
Originally Posted by dinan19
But thats not going to remove the check engine light. Ur saying to just plug them into the bungs or hang them from the drug bin but that doesnt solve anything. Here in idaho we dont have the sniffer test, all they do is check and make sure you dont have a check engine light via obd port.
Your O2 sims in the O2 sensor line circuit (theoretically) will prevent the CEL from the car thinking the post-cat O2 sensor is reading rich from having no cats.
Having your O2 sensors plugged in the O2 heater line circuit will prevent the CEL from the car thinking the O2 heater circuit is missing. Get it?
'03 330i ZHP 6sp street car
'02 330Ci 5sp race car
Last edited by SoloII///M; 01-05-2013 at 03:59 PM.