About Oxygen Sensor Replacement
What does the oxygen sensor do? For better engine operation, oxygen sensors are located at the front and the back of the vehicle. At the front to measure the amount of oxygen in the exhaust system, and the rear, to monitor the oxygen content of the exhaust gases leaving the catalytic convertor. How do you know you need your Oxygen Sensor replaced? Check Engine light is on Car is getting poor gas mileage Emission test fails How are the Oxygen Sensors replaced by a mobile mechanic? The battery cables are disconnected from the battery. The cables are then removed from the body and engine of the vehicle. Use a computer scanner to scan the car for codes. Inspect: looking for leaks and holes in the exhaust system. Replace and remove oxygen sensor if they are not working properly. Check electrical connections and proper oxygen sensor operations. Clear diagnostic codes. Test drive the car. How important is having your oxygen sensors replaced? If your oxygen sensors are not running properly your car will run less smoothly, get less mileage and have worse emissions .
