Question about 2003 Chevrolet Monte Carlo
The check engine light came on .. i checked the gas cap it was loose ... tightened it fillled it up with fuel....the light didn't go out. i had it scanned and got the po440 issue....had the check engine light turned off ....took the car to inspection and it failed for emissions.....the inspection guy said i might need to drive the car till the computer resets itself ....any help with this one???
You will need to drive about 50 miles till the computer checks the system since it was reset. Your check engine light may come back again, if it does run a vacum test..
Posted on Jul 23, 2009
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Posted on Jan 02, 2017
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Please see my tip at http://www.fixya.com/cars/r5932051-check_engine_light_check and let me know if you have questions.
Be sure to ask for the history when you get a scan. The computer stores all codes, even if the light has gone off. Report the codes back to us for analysis.
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