Nov 30, 2009 at 6:30 PM
I had a problem with passing emissions, my car would threw the P0420 Engine Code. I purchased an O2 sensor eliminator and installed it but my car would never get out of "self-check". I removed the O2 sensor eliminator but it still has the same problem: no mater how many miles I drive the thing for the emisions people say the car is still running the self check on itself. Any ideas?