P0166 Atención pronto
O2 Sensor Circuit No Activity Detected
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Descripción
This code means that one of your oxygen sensors isn't sending any signals to the engine computer. Oxygen sensors help your car's computer figure out how much fuel to inject for the best performance and emissions.
Causas comunes
- Faulty oxygen sensor
- Wiring issue to the oxygen sensor
- Exhaust leak before or near the oxygen sensor
- Problem with the engine control module (ECM)
- Clogged or faulty catalytic converter
Síntomas
- Check Engine light is on
- Reduced fuel economy
- Rough idling or engine misfires
- Failed emissions test