it might be the o2 censor starting to go out
You can reset your engine service light by holding in the scroll button. Hold the button in until the engine oil life goes to 100 percent. The engine service light will go off.
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.
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.
use a code scanner!
The largest warning light on the diesel Peugeot Partner dashboard is the Service Engine light. If it comes on during starting but goes out when the vehicle is started, there is no problem. If the light stays on, it is wise to service the engine.
Have vehicle scanned to determine the problem
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.
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.
The service engine light on your 2000 Ford Explorer by bringing out the oil life indicator screen. On the oil life screen holds the button down until the oil life goes to 100%. This should kick your service engine soon light off.
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.
What kind of car? make, model, year?
not a complete "emergency" but s soon as possible. no more than a few days.