How determine which o2sensor needs to be replaced on my 2003 mitsubishi eclipse
I don't know if its the upstream or downstream o2 sensor that went bad
Asked by autoairhead Nov 15, 2014 at 02:44 PM about the 2003 Mitsubishi Eclipse
Question type: Maintenance & Repair
I don't know if its the upstream or downstream o2 sensor that went bad
mikeatpriestlake answered 10 years ago
you should have a check engine light, read the code and it should tell you which one is having a problem. also, there are youtube vids on how to test them.
I don't know if its the upstream or downstream o2 sensor that went bad
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