hey guys
I ran over a construction cone the other day :/ and then my check engine light came on...i lost my lower grill and dented my radiator and that black box that sits in front of it...and ever since then the check engine comes on sporadically...i went to autozone today to get it scanned and heres what came out..There were 2 codes:
p0421 - catalyst efficiency low - bank 1
p0431 - catalyst efficiency low - bank 2
they both have the same explanation and possible causes:
explanation - the oxygen sensors monitor the catalytic converters ability to store oxygen
causes -
1. catalytic converter defective (could be due to #2, 3, or 4)
2. engine misfire or running condition
3. large vacuum leak
4. engine oil leakage into exhaust valve guide seals and piston rings
now i find it hard to believe that BOTH converters went bad at the exact same time as my hitting the cone, and i doubt there is a vacuum leak since it runs fine...however, sometimes when i start the car it is a little shaky so i could believe that there is some type of misfire, but im not sure..
Any help or advice is greatly appreciated!!!
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