There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
You can take it to a professional, or you can check the reading yourself. A check engine light can mean many things.
Supplemental Restraint System
No, the check engine light does not come on because your gas is half way full. The check engine light will come on if there is a problem with the engine.
To reset the check engine light on an Acura, you can disconnect the battery for about 10-15 minutes to clear the vehicle's memory. Alternatively, you can use an OBD-II scanner to read and clear the trouble codes associated with the light. If the underlying issue has been resolved, the light should stay off after resetting. However, if the problem persists, the check engine light may come back on, indicating further diagnostics are needed.
If an check engine light does not come on it is a good thing. When your check engine light comes on, it means you need service done on your vehicle.
No the check engine light will not come on
The check engine light comes on when you turn the key to the on position to show you that it is not burnt out. If it doesn't come on for that brief period then the bulb just needs to be replaced.
No, the check engine light has nothing to do with the oil level in the vehicle. The check engine light will come on when there is a problem with the emission system. The red oil warning light will come on if your vehicle is low on oil.
You can reset the light by disconnecting the battery negative cable and waiting a few minutes. If the fault that caused the light to come on is not repaired, it will come back as soon as the monitor that controls it is rerun.
If it has a downstream O2 sensor the check engine light will come on but if it does not the light may not come out. In most instances it will set the check engine light.
95 s10 blazer has a miss and check engine light does not come on and exhaust smells gassy what could it be
There are lots of different reasons a check engine light can come on does the car feel any different?