P01F2 Atención pronto
O2 Sensor Circuit Low Voltage Bank 1 Sensor 4
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Descripción
This code means the oxygen sensor circuit for Bank 1, Sensor 4 is reporting a low voltage. This could be due to a faulty sensor or a problem with its wiring.
Causas comunes
- Faulty oxygen sensor (Sensor 4)
- Wiring issue causing low voltage
- Exhaust leak before the sensor
- Contaminated oxygen sensor
- Problem with the sensor's heating element
Síntomas
- Reduced fuel efficiency
- Increased emissions
- Check Engine Light illuminated
- Rough engine idle