how to fix P0131 code in Ford Explorer Sixth Generation (2020-present)

Learn how to diagnose and fix P0131 oxygen sensor circuit issues in Ford Explorer (2020-present). Step-by-step guide with tools and procedures.

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the vehicle battery to ensure safety.
• Allow the engine to cool completely before starting work.

2. Remove Oxygen Sensor

• Locate Bank 1, Sensor 1 (pre-catalytic converter oxygen sensor).
• Use an oxygen sensor socket and ratchet to remove the sensor by turning it counterclockwise.
• Carefully disconnect the sensor's electrical connector.

3. Inspect and Clean

• Inspect the sensor's threads for any debris or damage.
• Clean the mounting surface on the exhaust pipe to ensure a proper seal for the new sensor.

4. Install New Oxygen Sensor

• Apply anti-seize compound to the threads of the new oxygen sensor (if not pre-coated).
• Install the new sensor by hand to avoid cross-threading, then tighten using the oxygen sensor socket to the manufacturer’s specified torque (usually around 30-40 lb-ft).
• Reconnect the electrical connector securely.

5. Reconnect Battery and Clear Codes

• Reconnect the vehicle battery.
• Use the OBD-II scanner to clear the error codes from the vehicle’s computer.

6. Test Drive

• Start the vehicle and allow it to reach normal operating temperature.
• Take the vehicle for a test drive to ensure that the check engine light does not reappear.