If you own a car, you might one day see the dreaded check engine light come on. For many people, this sends them into a panic because they think it's going to be something expensive to fix. However, not all check engine codes are created equal. Some are much more serious than others. Today we're going to talk about P0138 and whether or not it's something you should worry about.
P0138 is a code that indicates that the oxygen sensor in your car is not functioning properly. The oxygen sensor is responsible for monitoring the amount of oxygen in the exhaust fumes and sending that information to the engine control unit. If there's too much or too little oxygen, it can cause problems with how the engine runs.
In most cases, P0138 is not a serious problem and can be fixed relatively easily. Often, it's simply a matter of replacing the oxygen sensor itself. However, if the problem is left unchecked, it could eventually lead to bigger issues like damage to the catalytic converter or even engine failure.
So, if you see the check engine light come on with a P0138 code, don't ignore it! Take your car to a mechanic and have them take a look at it as soon as possible.