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04/01/2023 2:00 am
Topic starter
I have a 2004 Toyota Corolla with 104000 miles on it. I'm getting these codes: p0171, p0133, p0420, p0456. Should I directly replace my O2 sensor, or should I try to fix the other codes and see if the p0133 code goes away?
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04/01/2023 7:24 am
Well, oxygen sensors are part of a complex feedback system. It could be many things causing those codes. But often it is just the sensor if you want to take a guess
Thanks Scotty.