If you’re like most car owners, you probably don’t think much about your car’s oxygen sensors until they are causing a problem. But did you know that a bad oxygen sensor can impact your car’s ...

The oxygen (O2) sensor is part of the fuel management system. It monitors unburned oxygen in the exhaust. The powertrain control module (PCM) uses this information to determine if the fuel mixture is ...

Notifications You must be signed in to change notification settings The oxygen (O2) sensor in your car's engine system is a vital component responsible for measuring the oxygen level in exhaust gases.

The car engine needs a precise amount of fuel to mix with the air in the combustion chamber. If it doesn’t get that fuel, you are going to notice some performance issues. With so many parts to the ...