
Your vehicle’s oxygen sensor is responsible for measuring the levels of oxygen in exhaust gases that exit the engine. The Powertrain Control Module or PCM uses this information to identify the right air to fuel ratio in real time for your engine.
The sensor can be found in the exhaust system. It lets the engine timing and fuel injection to work efficiently that helps with emissions control. The oxygen level sensor will then transmit the data to the PCM of the vehicle to retain the optimal ratio of air and fuel for the vehicle engine.
A failing or bad oxygen …