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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.
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.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoThe 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.
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Why would the check engine light come on on your 1988 Chevy caprice only when speeding and goes off when you slow down?
It happens only the highway at about 100 km/h.
When a green plant absorbs a toxic substance which inhibits the Calvin cycle How would this most likely affect the light reactions?
The light reactions would slow down.
Dose fracturing light slow it down?
Refracted light is slowed down yes...
Do a light ray speeds up or slow down when it passes into a denser material?
yes,it will slow down
Why is my 1997 Nissan stalling only when I come to a stop or slow down too fast when I already checked fuel lines and replaced the MAF?
If the check engine light is or has illuminated, have the codes read. They may direct you to the problem area.
What is wrong if your door ajar light stays on and when you slow down the lights come on?
you may have a circuit or you can check your doors for any malfunctions
Why does the engine slow down when you press the accelerator on a 90 Plymouth grand voyager LE 3.3L?
Why does the engine slow down when you press the accelerator on a 90 Plymouth grand voyager LE 3.3L?
What are the yellow light laws?
SLOW DOWN and prepare to stop!
Why does a 1997 geo slow down then pick up speed when it is being driven?
If the check engine light is on then it will have to be scanned and diagnosed. The repair will need to be done and the codes cleared. If the light is NOT on then I would replace the fuel filter.
Why does service engine light come on a 1994 Mazda B4000 after driving on freeway for 20-30 minutes Never happens driving around town Any ideas?
To be sure you should have the codes pulled; If I were to guess, I would say your Oxygen sensor sensor is faulty causing the light to come on. Once you slow down, it is able to calibrate again. I hope this helps you. Mark
What does a yellow light mean?
On traffic lights it means slow down.
What sign warns you that you that you must slow down?
1) Yellow flashing light of a stop light. 2) when the yellow light for a "school zone" is flashing.the yield sign, the school crossing sign, and the yellow light are all signs of you must slow down.
