how to fix P0130 oxygen sensor code in Toyota Highlander Fourth Generation (2020-present)

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Tools Required: OBD-II scanner, multimeter, socket set, torque wrench, oxygen sensor socket.

2. Remove the Faulty Oxygen Sensor

• Locate the bank 1 sensor 1 oxygen sensor, which is typically positioned upstream of the catalytic converter on the exhaust manifold.
• Use the oxygen sensor socket to carefully unscrew the sensor from the exhaust system.
• Disconnect the wiring harness from the oxygen sensor.

3. Inspect and Clean

• Visually inspect the wiring harness for damage. If the harness is damaged, repair or replace as necessary.
• Clean the threaded area on the exhaust manifold where the sensor was installed to remove any carbon buildup.

4. Install New Oxygen Sensor

• Apply anti-seize compound to the threads of the new oxygen sensor to prevent it from seizing in the future.
• Hand-tighten the new oxygen sensor into the exhaust manifold, then use the torque wrench to tighten it to the manufacturer's specified torque (usually around 30 lb-ft).
• Reconnect the wiring harness to the new oxygen sensor.

5. Reconnect Battery and Clear Codes

• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear the P0130 code from the vehicle's computer.