About a lil over a week ago my check engine light came on. I took it to get checked at a Auto Zone and the code was #P0431. I thinks its my gas cap but the Check engine light is still on even after a lil over a week now????? Worried
WHEN IN DOUBT TAKE IT TO A DEALERSHIP
Trouble Code: P0431 Warm up Catalyst Efficiency Below Normal (Bank 2) Possible Causes:
Air leaks at the exhaust manifold or in the exhaust pipes.Catalytic converter is contaminated, damaged or has failed.Front HO2S is older (aged) than the rear HO2S (HO2S is lazy).Front HO2S or rear HO2S is contaminated with fuel or moisture.
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