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2002 toyota camry 2.2L code P0420

I need with problem code P0420 ,what can i do?

Vehicle: 2002 toyota camry 2.2L
asked Dec 28, 2012 by Kokhort Tee (106 points)
edited Dec 29, 2012 by OBDIITech

1 Answer

This code is stored when the catalytic converter is not cleaning the exhaust enough to satisfy the rear O2 sensor. This can be caused by a poor running engine or a failure of the converter or rear O2 sensor.If the engine is running poorly, start with a tune up and clearing the codes, then take it from there. If there continues to be a 420 code, in most cases the catalytic converter needs to be replaced to resolve the problem.
answered Mar 6, 2013 by Carguy1 (3,491 points)

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