Quote:
Originally Posted by jackal2000
5 monitors:
Catalyst - not ready
Evap system - not ready
O2 sensor - ready
HO2 sensor - not ready
EGR system - ready
i disabled the codes in the pcm with powrtuner so no SES light comes on. i thought
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These are readyness monitors, they have to run on several key cycles, if you've disabled them with the power tuner, then they will never "RUN" and post ready.
Anytime you just CLEAR codes, it resets the readyness monitors, if you disconnect the battery (Usually the poor mans way to turn off the SES) it resets the readyness monitors.
So if youve been runnin around with the light on and just cleared the codes it will never pass. All they do is hook up a scantool and check system readyness, In NC emission inspection counties , if there is more than one NOT READY the car fails. I've failed one this morning so far on a modded Corolla with no CAT.