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10 kinds of oxygen sensor fault manifestations, causes and troubleshooting
2022-10-27 23:50
The oxygen sensor transmits the measured value of air fuel ratio in the automobile engine to its PCM/ECU automobile computer for corresponding adjustment. It also takes into account atmospheric pressure, altitude and ambient/engine temperature (among other things) to determine whether the engine is burning a lean mixture or a rich mixture.
The following are 10 common oxygen sensor failures:
Continuously failed emission tests
The instrument cluster flashes or lights up (check engine light)
Misfire, idling or stalling
Poor fuel economy/high fuel consumption
Poor engine performance
Engine noise
Black exhaust gas
Sulfur smell in exhaust gas/rotten egg smell
Three way catalyst suddenly fails
Engine overheating
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