What does the check engine light usually mean?
It’s usually ignored by drivers until it is too late.
If your check engine light is illuminated, bring it to Bill’s Standard to determine what is causing the light to come on. Even though the light may vary from vehicle to vehicle, all have the same basic meaning: There’s a problem with the car’s emissions system. The on-board diagnostics system and engine control unit are in charge of monitoring a bunch of different parameters, and if they get a reading that’s off, then on comes the light.
The list of things that can trigger the check engine light is pretty lengthy. For example, anything from a loose gas cap to a faulty fuel injector can be to blame.
Potential issues include:
Ignoring the check engine light can lead to costly repairs and reduced gas mileage.