how to fix the P0134 code on my Ford F-150 14th Generation (2021-2024)?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to prevent electrical shorts.
• Tools Required: OBD-II scanner, multimeter, socket set, torque wrench.

2. Inspect and Repair Wiring

• Check the oxygen sensor wiring harness for any visible damage or corrosion.
• If damaged, repair or replace the wiring and connectors as needed.
• Ensure all connections are secure.

3. Replace the Oxygen Sensor

• Locate the upstream oxygen sensor (typically found on the exhaust manifold).
• Using a socket wrench, carefully remove the old oxygen sensor from the exhaust pipe.
• Apply anti-seize compound to the threads of the new sensor to prevent future seizing.
• Install the new oxygen sensor and torque it to the manufacturer’s specifications (typically around 30 lb-ft).
• Reconnect the sensor’s electrical connector.

4. Clear Codes and Test

• Reconnect the battery.
• Use the OBD-II scanner to clear the P0134 code from the vehicle's computer.
• Start the engine and let it reach operating temperature.