enging light car vibrate 2003 4runner
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I got engine code P0420. Catalyst system Efficiency below threshold (bank 1)" these are the right parts? I have 201,000+ miles. Do you think I should also change Catalyst Converter too? Thanks Bank one Sensor 89465-60220 $124.86 Bank two Sensor 89465-60230 $124.86
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Popular Answer
user91328on Jul 21, 2010
replace the cat first. that is the culprit. save your money on the o2 sensors. Roy
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