How often should an oxygen sensor be replaced?
The post-catalyst pair of oxygen sensors ideally detects a steady and unvarying amount of oxygen exiting the catalytic converters. The ECM uses this information to monitor catalytic converter efficiency. Oxygen sensors should be replaced every 100,000 miles. In a perfect world that would be it, wait until a specified mileage and replace the sensor.
Can a lazy oxygen sensor cause a catalytic converter problem?
You may need to fix other engine problems in order to solve your catalytic converter problem. A lazy oxygen sensor might falsely indicate a catalytic converter problem, yet not set a DTC for itself. A technician can determine if the sensor is responding as it should.
When to reset the ECU after changing an O2 sensor?
Sometimes an O2 sensor fails, and you need to replace it. Once you’ve replaced your vehicle’s O2 sensor, you’ll need to reset the ECU so it can properly gather information from the new O2 sensor.
What’s the name of the sensor after the catalytic converter?
Sensor 2 or S2 refers to the sensor after the catalytic converter. Keep in mind that when your car was serviced before, parts may have been replaced with different size fasteners used in the replacement. The sizes of the nuts and bolts we give may be different from what you have, so be prepared with different size sockets and wrenches.
You may need to fix other engine problems in order to solve your catalytic converter problem. A lazy oxygen sensor might falsely indicate a catalytic converter problem, yet not set a DTC for itself. A technician can determine if the sensor is responding as it should.
Sometimes an O2 sensor fails, and you need to replace it. Once you’ve replaced your vehicle’s O2 sensor, you’ll need to reset the ECU so it can properly gather information from the new O2 sensor.
The post-catalyst pair of oxygen sensors ideally detects a steady and unvarying amount of oxygen exiting the catalytic converters. The ECM uses this information to monitor catalytic converter efficiency. Oxygen sensors should be replaced every 100,000 miles. In a perfect world that would be it, wait until a specified mileage and replace the sensor.
How does the O2 sensor in a car work?
The O2 sensor in your vehicle monitors the exhaust gases coming out of the engine. It determines the amount of oxygen in the gases, which indicates how well the fuel is being burned. The O2 sensor then sends information to the electronic control unit, or ECU, the vehicle’s computer.