The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to a parts store or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.
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.
that is normal. The computer has a no load rev limiter.
Blocked cat convertor or cam sensor. If it is the cam sensor the orange engine light should be on. If there is no engine light on its probably the cat convertor.
I have a 1990 Honda accord ex and my check engine light the car goes form a high rev to a low rev when I first turn on the car. Is this a vacume line problem or a voltage problem?
It means your engine is screwed and you need to call an auto shop RIGHT NOW
No the check engine light will not come on
If it is doing that, it means you have a blown transmission. You need to take it to the repair man immediatly
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.
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.
its probably your TPS Switch or your idle control sensor, check engine light will not come on for either take to Hyundai dealership
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.
Thomas the tank engine was created by Rev Wilbert vere Awdry. and he lived in the UK