how to fix check engine light code P0133 on Honda Accord 10th Generation (2018-2022)

• •Check engine light illuminated
• •Poor fuel economy
• •Rough idling or stalling
• •Increased emissions
• •Hesitation during acceleration

1. 1Scan the vehicle's computer using an OBD-II scanner to confirm the P0133 code and check for any additional codes.
2. 2Inspect the wiring and connectors to the upstream oxygen sensor for damage, corrosion, or loose connections.
3. 3Measure the voltage output of the upstream oxygen sensor at idle using a multimeter to check for proper function.
4. 4Check the vehicle's fuel trim readings using the OBD-II scanner to assess if they are within the normal range.
5. 5Inspect the exhaust system for leaks, which could affect the oxygen sensor readings.

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 and extension
• •Torque wrench

• •New upstream oxygen sensor