If your check engine light is on, and you’ve determined that the O2 sensor is the cause, you may be wondering how to reset the O2 sensor drive. Here are a few things to keep in mind.
First, it’s important to know that there are two types of O2 sensors- upstream and downstream. Upstream sensors are located before the catalytic converter, while downstream sensors are located after. If your check engine light is on because of a faulty upstream O2 sensor, resetting the drive will likely not fix the problem. In this case, you’ll need to replace the sensor.
Downstream O2 sensors can be reset by disconnecting the battery for 30 minutes or more. This will clear any stored codes in the computer and allow the sensor to start fresh. However, if your downstream O2 sensor is faulty, simply resetting it may not fix the issue. In this case, you may need to replace the oxygen sensor altogether.