Q: Code P0139 and P0841
This is related to last question I asked where I have 2 codes for the check engine light. Does one have precedent over the other or both codes are equally important? I was told by another mechanic that these two codes refers to the same thing that my o2 sensor needs be replaced and EFI service is needed because the throttle body is dirty.
P0139 and P0841
My car has 50000 miles.
My car has an automatic transmission.
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