Your check engine light can come on for a lot of different reasons, but there are only a few that occur after putting in gas.

What Does It Mean When the Check Engine Light Comes On? When the check engine light illuminates on the car's dashboard, it indicates that the vehicle's computer has detected a fault or anomaly in ...

The check engine light might come on if the oil doesn't meet the ... These sensors provide data on several parameters to the car's electronic control unit. This lets the computer adjust things ...

“Ignoring the Check Engine light can cause a car to fail an ... education and the fact that an increasing number of cars and trucks now come with capless fuel tanks that eliminate the component ...