how to fix P0134 code in Ford F-150 Fourteenth Generation (2021-present)

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the battery to prevent electrical shorts.

2. Remove the Oxygen Sensor

• Locate the upstream oxygen sensor (usually found in the exhaust manifold or just after the header).
• Use a socket wrench with an O2 sensor socket to carefully unscrew the sensor.
• Disconnect the electrical connector by pressing the release tab and pulling it apart.

3. Inspect and Replace

• Inspect the old O2 sensor for signs of wear or damage.
• If replacement is necessary, install the new oxygen sensor by reversing the removal process.
  • Ensure to use anti-seize compound on the threads if recommended by the manufacturer.
  • Torque to the manufacturer's specified value (typically around 30-35 ft-lbs).

4. Reconnect Battery and Test

• Reconnect the battery terminals.
• Clear any diagnostic trouble codes using the scanner.
• Start the engine and allow it to reach operating temperature, monitoring for any warning lights.

5. Final Inspection

• Double-check for any exhaust leaks around the O2 sensor area.
• Confirm proper installation by ensuring the sensor is securely fastened and the electrical connections are tight.