how to fix P0131 oxygen sensor code on my Ford F-150 13th Generation (2015-2020)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery by removing the negative terminal.
• Allow the engine to cool down before beginning work.

2. Remove the Faulty Oxygen Sensor

• Locate the oxygen sensor (usually found in the exhaust manifold or downstream in the exhaust system).
• Use a socket or wrench to carefully unscrew the oxygen sensor from its mount.
• Disconnect the electrical connector from the oxygen sensor.

3. Install the New Oxygen Sensor

• Apply anti-seize compound to the threads of the new oxygen sensor (if not pre-applied).
• Screw the new oxygen sensor into the exhaust system by hand to avoid cross-threading, then tighten it with a wrench to the manufacturer’s specifications (typically around 30-40 Nm).
• Reconnect the electrical connector ensuring it clicks into place.

4. Reconnect Battery and Clear Codes

• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear the P0131 code from the vehicle’s computer.

5. Test the Repair

• Start the engine and allow it to reach operating temperature.
• Monitor the oxygen sensor’s performance with the OBD-II scanner to ensure it is functioning properly and that the code does not reappear.