P2A01

Symptoms

• Check Engine light comes on
• Increased fuel consumption
• Reduced engine power
• Unstable engine operation at idle
• Increased emissions of harmful substances

Causes

• Bank 1 Sensor 2 Oxygen Sensor Malfunction
• Damaged or corroded sensor wiring
• Poor contact in the sensor connector
• Exhaust gas leaks in front of the sensor
• Problems with the catalytic converter

How to Fix

1. Check the status of the oxygen sensor Bank 1 Sensor 2
2. Inspect the wiring and connectors of the sensor for damage
3. Check the exhaust system for leaks
4. Replace the oxygen sensor if necessary
5. Clear error codes and check if error is returned

Related codes

Error P2A01 by Vehicle Brand