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Re: 11 impala o2 monitor
Posted to Emissions Forum on 10/4/2019

Interesting Todd you mention a stable APP. I am currently writing a new update course and one on the items I ran across (from a smog program back East) was a 2005 Cadillac where the O2 and Cat monitors would not run (no DTCs). Tech noticed the vehicle had a sl... Login to read more.