What is the cause of engine light on?
If your light is on, it typically means the car’s emissions control system is faulty and the vehicle is polluting the air beyond allowable federal standards. A vehicle in this condition would fail an emissions inspection or smog check. Don’t confuse the check engine light with the maintenance or service light.
What are the reasons why the service engine light comes on?
One Sensor has a Loose Electrical Connection or is Damaged.
Why would my engine light come on?
Officially known as a malfunction indicator lamp, the check engine light can go on for a number of different reasons. In some cars, something as simple as a loose gas cap, which the car’s computer can read this as a leak in the emissions system, or even a change in humidity can cause the light to come on.
What causes the service engine light to come on?
Loose gas cap. This is one of the most common causes of the service engine indicator light to go on.
What to do if your check engine light is on?
If the check engine light comes on, here are some tips on what you should do: Look for a serious problem that requires immediate attention. Check your dashboard gauges and lights for indications of low oil pressure or overheating. Try tightening your gas cap. This can often solve the problem. Reduce speed and load.