how to fix the P0135 code on my Honda Accord 8th Generation (2008-2012)?

Learn how to diagnose and fix P0135 oxygen sensor issues in Honda Accord (2008-2012). Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the vehicle battery to prevent electrical shorts during repairs.

Tools Required:

• OBD-II scanner
• Multimeter
• Socket set
• Torque wrench
• Oxygen sensor socket
• Wire brush or contact cleaner

2. Remove the Faulty Oxygen Sensor

• Locate the Bank 1 Sensor 1 oxygen sensor (typically positioned upstream of the catalytic converter).
• Disconnect the electrical connector by pressing the release tab and pulling it apart.
• Using an oxygen sensor socket, unscrew the oxygen sensor from the exhaust pipe.

3. Install the New Oxygen Sensor

• Apply anti-seize compound to the threads of the new oxygen sensor (avoid getting it on the sensor tip).
• Screw the new oxygen sensor into place and tighten it to the manufacturer's specifications (usually around 30-40 ft-lbs).
• Reconnect the electrical connector securely.

4. Clear the Codes and Test

• Reconnect the vehicle battery.
• Use the OBD-II scanner to clear the P0135 code from the vehicle's computer.
• Start the engine and allow it to reach operating temperature.

Safety Warnings:

• Allow the exhaust system to cool before working on it to avoid burns.
• Ensure the vehicle is securely lifted if working underneath.