A properly-functioning oxygen sensor helps us all breathe easier.
A properly-functioning oxygen sensor ensures that your vehicle is operating at its optimal exact of efficiency and that it continues to conformed the emission requirements all over which it was designed. The O2 sensor assists the vehicle's on-board pc in determining the vastness of O2, wrapped up accustoming of the air-to-fuel ratio, that is required for entire oxidation of any unburned particles instruct in the exhaust system. The oxygen sensor is designed to work in harmony with the vehicle's other emission monitoring equipment and, as such, it must be replaced if it is determined to be defective.
Instructions
1. Start the vehicle and allow it to run for 2 to 3 minutes, then turn it off. This will help the exhaust pipe to expand, making the oxygen sensor easier to remove. Remember that the exhaust will be warm while working on it, so use gloves to avoid burns.
2. Raise the vehicle and secure it with the jack stands.
3. Locate the four oxygen sensors on the exhaust system. Using the appropriate size wrench, unscrew the oxygen sensor by turning it in a counterclockwise direction.6. Coat the threads of the new oxygen sensor with anti seize compound. This will make any further removal much easier.
On the 2002 Taurus, they are mounted at the inlet and outlet of each catalytic converter.4. Disconnect the electrical connector from the faulty oxygen sensor.5.
Again, using the wrench, install the new sensor by turning it in a clockwise direction until it is tight.
7. Reconnect the electrical connector.
