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10/08/2023 5:47 pm
Topic starter
Have this 2004 pontiac vibe and had put in a new front O2 sensor and then took to get smogged and then it did not pass
Told the guys what I did he told me to drive it 200 miles and come back
Well engine light came back on and now says P420 and P420p codes
what option or best methods to fix or clear codes.
Thank you for your time
Steve Mitchell
Ret USN CPO
2 Answers
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10/08/2023 6:08 pm
What was the reason why you put a new front O2 sensor on it before these codes were set?
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10/08/2023 7:12 pm
Did you install an OEM sensor?
