P2AF0
Intake Air O2 Sensor Negative Current Control Circuit Low Bank 2
P2AF0 is an OBD-II diagnostic trouble code meaning: Intake Air O2 Sensor Negative Current Control Circuit Low Bank 2. Common causes: malfunction of the oxygen sensor in the intake tract, open or short circuit in the sensor control circuit. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Unstable engine idling
- Dips during acceleration
Causes
- Malfunction of the oxygen sensor in the intake tract
- Open or short circuit in the sensor control circuit
- Poor contact in sensor connectors
- Engine control module malfunction
- Circuit Grounding Problems
How to Fix
- Check the integrity of the wiring to the oxygen sensor
- Check sensor connectors for corrosion or damage.
- Measure resistance and voltage at the sensor
- If necessary, replace the oxygen sensor
- Check and, if necessary, update the ECU firmware
Related codes
Error P2AF0 by Vehicle Brand
FAQ
What does the P2AF0 code mean?
P2AF0 is an OBD-II diagnostic trouble code that indicates: Intake Air O2 Sensor Negative Current Control Circuit Low Bank 2
What causes a P2AF0 error code?
The most common causes of P2AF0 include: Malfunction of the oxygen sensor in the intake tract; Open or short circuit in the sensor control circuit; Poor contact in sensor connectors; Engine control module malfunction.
How do I fix a P2AF0 diagnostic trouble code?
To fix P2AF0: Check the integrity of the wiring to the oxygen sensor. Check sensor connectors for corrosion or damage.. Measure resistance and voltage at the sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2AF0?
Yes, but get it checked soon
How much does it cost to fix P2AF0?
The estimated repair cost for P2AF0 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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