how to fix P0133 code on Honda Accord 8th Generation (2008-2012)

• •Check engine light illuminated
• •Decreased fuel economy
• •Rough engine idle
• •Poor acceleration
• •Increased emissions
• •Possible failure during emissions testing

1. 1Scan for error codes using an OBD-II scanner to confirm P0133 and check for any additional codes.
2. 2Visually inspect the wiring and connectors for the upstream oxygen sensor for any signs of damage or corrosion.
3. 3Check the oxygen sensor heater circuit with a multimeter to ensure it is functioning properly.
4. 4Measure the voltage output of the upstream oxygen sensor while the engine is running to assess its response time.
5. 5Inspect the exhaust system for leaks that could affect sensor readings.
6. 6Clear the fault codes and take the vehicle for a test drive to see if the code reappears.

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
• •Oxygen sensor socket
• •Socket wrench set
• •Multimeter
• •Wire brush

• •New upstream oxygen sensor
• •Anti-seize compound