how to fix P0131 oxygen sensor code in Volvo XC60 Second Generation (2018-2024)

• •Check engine light illuminated
• •Poor fuel economy
• •Rough idle or engine stalling
• •Increased emissions
• •Decreased engine performance
• •Smell of fuel in exhaust

1. 1Scan the vehicle's onboard computer with an OBD-II scanner to confirm the P0131 code and check for any additional codes.
2. 2Visually inspect the wiring and connectors of the upstream oxygen sensor for damage, corrosion, or loose connections.
3. 3Measure the voltage output of the oxygen sensor with a multimeter to confirm that it is indeed below the expected range.
4. 4Check the vehicle’s fuel trims (short-term and long-term) using the scanner to assess if they are outside normal parameters.
5. 5Inspect the exhaust system for leaks that could affect O2 sensor readings.
6. 6Verify the operation of the engine coolant temperature sensor, as incorrect readings can impact the O2 sensor performance.

After completing the repair, verify that the issue has been resolved:

• ✓Test the affected component to ensure it functions correctly
• ✓Check for any error codes or warning lights
• ✓Monitor the vehicle for a few days to ensure the issue does not recur

To prevent this issue from occurring again:

• •Follow the manufacturer's recommended maintenance schedule
• •Address warning signs early before they develop into major issues
• •Use quality parts and fluids recommended for your vehicle
• •Keep detailed records of all repairs and maintenance

• •OBD-II scanner
• •Multimeter
• •Oxygen sensor socket
• •Ratchet
• •Torque wrench

• •Upstream oxygen sensor (if replacement is necessary)
• •Oxygen sensor cleaner (if cleaning)