how to fix P0130 oxygen sensor code in Toyota Highlander XU70 (2020-Present)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the vehicle battery to prevent any electrical issues.
• Allow the engine to cool down before beginning work.

2. Inspect Wiring and Connectors

• Tools Required: Multimeter, wire brush, electrical contact cleaner
• Visually inspect the wiring harness and connectors of the upstream oxygen sensor for any frays, breaks, or corrosion.
• Clean any corrosion using electrical contact cleaner and a wire brush.
• Repair or replace damaged wiring or connectors as necessary.

3. Replace the Upstream Oxygen Sensor

• Tools Required: O2 sensor socket, ratchet and extension, torque wrench
• Locate the upstream oxygen sensor on the exhaust manifold.
• Use the O2 sensor socket to unscrew the old sensor. Ensure it is rotated counterclockwise.
• Apply anti-seize compound to the threads of the new oxygen sensor (if necessary).
• Install the new sensor by threading it in and tightening it with the O2 sensor socket. Torque to manufacturer specifications (typically around 30 lb-ft).

4. Reconnect Battery and Clear Codes

• Reconnect the vehicle battery.
• Use an OBD-II scanner to clear the P0130 code from the ECU.

5. Test Drive the Vehicle

• Take the vehicle for a test drive to allow the ECU to monitor the oxygen sensor's performance and confirm the code does not reappear.