|11-28-2012, 06:47 AM||#1|
96 2rz O2 sensor
Throwing a cel, scanner says catalyst bank one low efficiency or something like that. I'm guessing its the O2 before the cat ? Sound right ?
|11-28-2012, 11:01 AM||#2|
ASE Master Tech
I have a feeling that it is not right. A P0420 is catalytic converter low efficiency. That USUALLY, but not always, indicates either a bad catalytic converter, or a problem with the O2 sensor AFTER the cat, which is what measures the cats efficiency. An exact code number would help.
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