P01F1
O2 Sensor Circuit Bank 1 Sensor 4
P01F1 is an OBD-II diagnostic trouble code meaning: O2 Sensor Circuit Bank 1 Sensor 4. Common causes: open or short circuit in the sensor wiring harness, oxidation of sensor contacts. Estimated repair cost: $56–167.
Symptoms
- Increased fuel consumption
- Deterioration of vehicle dynamics
- Check Engine Light Is On
- Unstable engine operation at idle
Causes
- Open or short circuit in the sensor wiring harness
- Oxidation of sensor contacts
- Oxygen sensor malfunction
- Problems with the sensor connector
- ECU malfunction
How to Fix
- Check the integrity of the sensor wiring harness
- Clean the sensor and connector contacts
- Check the resistance and voltage at the sensor
- Replace the oxygen sensor if necessary
- Reset the error and check the system operation
Related codes
Error P01F1 by Vehicle Brand
FAQ
What does the P01F1 code mean?
P01F1 is an OBD-II diagnostic trouble code that indicates: O2 Sensor Circuit Bank 1 Sensor 4
What causes a P01F1 error code?
The most common causes of P01F1 include: Open or short circuit in the sensor wiring harness; Oxidation of sensor contacts; Oxygen sensor malfunction; Problems with the sensor connector.
How do I fix a P01F1 diagnostic trouble code?
To fix P01F1: Check the integrity of the sensor wiring harness. Clean the sensor and connector contacts. Check the resistance and voltage at the sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P01F1?
Limited driving only, diagnose soon
How much does it cost to fix P01F1?
The estimated repair cost for P01F1 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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