P0163

Symptoms

• Check Engine light comes on
• Increased fuel consumption
• Reduced engine efficiency
• Increased emissions of harmful substances

Causes

• Oxygen sensor malfunction (Bank 2 Sensor 3)
• Open or short circuit in the sensor wiring harness
• Poor contact in the sensor connector
• ECU malfunction
• Sensor circuit grounding problems

How to Fix

1. Check the integrity of the sensor wiring harness
2. Check connections and contacts in the sensor connector
3. Check the voltage in the sensor circuit using a multimeter
4. Replace the oxygen sensor if necessary
5. Check and, if necessary, replace the computer

Related codes

Error P0163 by Vehicle Brand