how to fix the P0130 O2 sensor code on my Toyota Highlander Fourth Generation (2020-present)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the negative battery terminal to prevent any electrical shorts.

2. Remove the Faulty O2 Sensor

• Locate the Bank 1 Sensor 1 O2 sensor, which is typically situated before the catalytic converter.
• Using the appropriate socket or wrench, carefully unscrew the faulty O2 sensor from the exhaust manifold.
• Be cautious not to damage surrounding components or threads.

3. Install the New O2 Sensor

• Apply anti-seize compound (if recommended by the manufacturer) to the threads of the new O2 sensor to prevent seizure.
• Screw in the new O2 sensor by hand to avoid cross-threading, then tighten it with the socket or wrench to the manufacturer’s torque specifications (usually around 30-40 ft-lbs, but verify with service manual).
• Reconnect the electrical connector to the new O2 sensor ensuring it clicks into place securely.

4. Reconnect Battery and Test

• Reconnect the negative battery terminal.
• Start the engine and allow it to reach operating temperature.
• Monitor the O2 sensor readings with a scan tool to ensure it is functioning properly.