P2A04
O2 Sensor Circuit Range/Performance Bank 2 Sensor 2
P2A04 is an OBD-II diagnostic trouble code meaning: O2 Sensor Circuit Range/Performance Bank 2 Sensor 2. Common causes: oxygen sensor malfunction (bank 2, sensor 2), open or short circuit in the sensor circuit. Estimated repair cost: $28–89.
Symptoms
- Check Engine light comes on
- Increased fuel consumption
- Reduced engine power
- Unstable engine idling
- Dips during acceleration
Causes
- Oxygen sensor malfunction (bank 2, sensor 2)
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Problems with the catalytic converter
- Leaks in the exhaust system
How to Fix
- Check the condition of the oxygen sensor and its connector
- Check the integrity of the sensor circuit wires
- Check the voltage and resistance in the sensor circuit
- Check the exhaust system for leaks
- If necessary, replace the oxygen sensor
Related codes
Error P2A04 by Vehicle Brand
FAQ
What does the P2A04 code mean?
P2A04 is an OBD-II diagnostic trouble code that indicates: O2 Sensor Circuit Range/Performance Bank 2 Sensor 2
What causes a P2A04 error code?
The most common causes of P2A04 include: Oxygen sensor malfunction (bank 2, sensor 2); Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Problems with the catalytic converter.
How do I fix a P2A04 diagnostic trouble code?
To fix P2A04: Check the condition of the oxygen sensor and its connector. Check the integrity of the sensor circuit wires. Check the voltage and resistance in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2A04?
Yes, but get it checked soon
How much does it cost to fix P2A04?
The estimated repair cost for P2A04 is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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