how to fix Honda Civic 10th Generation (2016-2021) check engine light code P0133

Solution

1. Preparation

• Gather all necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the negative terminal of the battery to prevent electrical shock.

2. Remove the O2 Sensor

• Locate the O2 sensor (usually found in the exhaust manifold or near the catalytic converter).
• Use a socket wrench to remove the O2 sensor. Ensure to use an O2 sensor socket for easier access.
• Carefully disconnect the electrical connector from the O2 sensor.

3. Inspect and Clean

• Inspect the threads of the O2 sensor and the exhaust port for carbon buildup or damage.
• If necessary, use a wire brush to clean the area and ensure a good seal when reinstalling the new sensor.

4. Install New O2 Sensor

• Apply anti-seize compound (if required) to the threads of the new O2 sensor to prevent future seizing.
• Install the new O2 sensor by threading it into the exhaust port and tightening it to the manufacturer’s specified torque (typically around 30 lb-ft).
• Reconnect the electrical connector securely.

5. Reconnect Battery and Clear Codes

• Reconnect the negative terminal of the battery.
• Use an OBD-II scanner to clear the P0133 code from the vehicle’s computer.

6. Test Drive

• Start the vehicle and let it idle for a few minutes.
• Take the vehicle for a test drive, ensuring to monitor the engine performance and check if the check engine light remains off.