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Old 02-20-2019, 12:54 PM   #1
merrillwebb
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engine light

On my 02 corolla code says o2 sensor: however I have replaced both o2 sensors, catalytic converter, cleaned throttle body and new sensor as well as throttle sensor. After clearing engine light I drive a few miles and the light comes back on. Would like to disconnect the light or fix the problem, any suggestions? Thx Merrill
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Old 02-20-2019, 08:39 PM   #2
Stealthee
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Re: engine light

We need to know more than just o2 sensor. What is the actual code? Your cat could be at fault.
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Old 02-22-2019, 11:38 AM   #3
merrillwebb
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Re: engine light

we have our own obdII tester and the code reads PO420catalytic system, bank 1. Thanks
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Old 02-22-2019, 04:58 PM   #4
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Re: engine light

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