how to diagnose P0133 code in Honda Civic 9th Generation (2012-2015)

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, socket set, torque wrench, safety glasses, gloves.
• Ensure the vehicle is parked on a flat surface, the engine is off, and the keys are removed from the ignition.

2. Replace the Oxygen Sensor

1. Disconnect the Battery:

   • Disconnect the negative terminal of the battery to prevent electrical shorts.

2. Remove the Old Oxygen Sensor:

   • Locate the Bank 1, Sensor 1 oxygen sensor, typically found on the exhaust manifold.
   • Use a socket wrench with an oxygen sensor socket to carefully unscrew and remove the old sensor.

3. Install the New Oxygen Sensor:

   • Apply anti-seize compound to the threads of the new oxygen sensor (if not pre-coated).
   • Screw the new sensor into place by hand, then tighten it to the manufacturer's specifications using the torque wrench (usually around 30 lb-ft, but verify in the repair manual).

4. Reconnect the Connector:

   • Plug the electrical connector back into the new oxygen sensor, ensuring a secure connection.

3. Final Checks

• Reconnect the battery terminal and ensure it is tight.
• Start the engine and let it reach operating temperature to ensure the sensor is functioning properly.