Perform a bench catechism on the O2 sensor provided it has already been removed from the vehicle.
The O2 sensor in your vehicle plays a imperative role in the engine's efficiency. The Oxygen sensor works To gauge the size of O2 entering the engine. This data is then used to conduct and finance the Correct air to fuel ratio. The sensor has a voltage resistence that can be tested to guard it works properly. You can evaluation the sensor while installed in the vehicle. Provided you enjoy already taken the sensor away to alter or Disinfected it, you can proof it with a uncommon tools before putting it back into the vehicle.
Instructions
1. Turn the engine off and remit the engine and sensors to chilled down for a half age. Free the hood of the vehicle.
2. Set the oxygen sensor. The oxygen sensor will be mounted on the catalytic converter or intake manifold. Depending on the manufacturer, there may be two tabs on the side of the harness; if so, depress the tabs and pull the harness out of the sensor.4. Remove the screws that secure the sensor in place with the appropriate screwdriver. Lift the sensor off the mount and place it on the workbench face up. This will ensure the sensor does not get damaged.
The location will vary based on manufacturer; refer to your repair manual for exact location and a detailed diagram.3. Unclip the wire harness on the side of the sensor. Pull on the base of the wire harness to remove.
5. Clip the ohmmeter's positive lead to the sensor signal lead. The signal lead is the middle of the three wire terminals. Clip the negative lead to a grounded point. Turn the ohmmeter on and read the measurement. When the oxygen sensor is not heated, you should see an infinite reading.
6. Turn the blowtorch on and point it at the sensor from about Six inches away. This will allow the torch to change the oxygen in the environment without harming the sensor. The ohmmeter should jump to a reading of about One volt for a good sensor. If the ohmmeter does not register, then the sensor is faulty.
