When the check engine light comes on, it's a good indication that something is wrong with your engine.
If an engine transmission light comes on in the dashboard there can be a potential problem with the drive-train. The engine's computer should receive a diagnostic to determine if there is anything wrong with the transmission.
Check the engine oil, sometimes when the oil is low the check engine light comes on while sitting still and goes out when you accelarate.
The check engine or service engine soon light comes on to alert you that there is or was a problem with the emissions system on your vehicle. If the light comes on steady and stays on, it means that there is a problem and you should have it checked out soon. If it comes on and flashes, it means you will cause damage if you continue driving.
When the check your engine light comes on in a vehicle it can mean various things. The light is part of the vehicles diagnostic system and acts as a warning that something may be wrong with your vehicle.
Disconnect the battery for about 10-15 minutes resets the computer, and that means no Check Engine Light after you have fixed/ replaced what was wrong.
did you check the oil level yet?
When the engine light comes on and the car shakes at the same time, it could be the spark plugs or ignition coils are faulty. Misfiring is causing the car to shake.
You check engine light is signaling to you that there is something wrong with you car. You should have your car looked at by a professional.
When my check engine light comes on, it is caused by the temperature sensor not working. As soon as the light comes on, my temperature drops to cool. If the light goes out, the temp gauge returns to normal.
Wiring or computer
There are dozens and dozens of causes for the check engine light to stay on. You need to have the computer checked for codes to know possible causes.