i went to auto zone and they checked it for me and told me the code was obd II PO442 they told me all i had to do was change the gas cap, boy were they full of it, can anyone tell me what could be wronge, Thanks
That code deals with any sort of a problem in the Evaporative Emissions System. And usually a gas cap night tight enough or worn out is the likely fix. AND if it is that, the light may not shut off for 2-3 weeks after you tighten it enough to hear 3 clicks or after it is replaced and tightened that tight. HOWEVER there are similar causes of that code. 1 is a bad vent solenoid or valve, 2 a bad purge valve or solenoid or 3 a bad OBD computer on that car.
It is actually possible that the gas cap isn't making a tight seal and could cause the light to go on. Not sure what your code means.When I had the same problem in a Mazda B3000 pickup, we disconnected the battery and let it sit for a few minutes. We reattached the battery and the code reset itself.no more check engine light. Good Luck!
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A gas cap that doesent seal will set this code, but so Will any sort of pressure loss in the gas tank or related components that have to do with preventing vapors from escaping to atmosphere. The best thing to do is to have a dealer run a smoke test on the evap control system,to exactly pinpoint leak.
