There are a number of reasons why a check light might be coming on in your car. Once the check engine light comes on it is important to get the car to a mechanic for diganoses.
If the light is not coming on when you turn on the ignition, check the bulb, it may be blown.
It could be bad with out turning the light on.
check your oil level?
Your fuel is low. Its telling you to check your gas gauge...
There are a number of different possibilities as to why a check light may be appearing on the dashboard. A person should check their tires, oil levels, or with a mechanic if there is cause for concern.
I am having the same issue AFTER replacing the torque converter and switch in the transmission. My check engine light was coming on with the transaxle light and the code read to replace these items BUT the transaxle light is still coming on. I am still trying to get an answer on this!
'Well I have a 95 Buick LeSabre, and the check engine light keeps coming on. So I asked a guy at car-x, and he said that usually occurs when you go really slow on the interstate.'
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.
Slightly possible, not likely.
If it is a 1996 or later you can not.
Have vehicle scanned to determine problem
There are pages and pages of causes for the check angine light. Have it checked fro codes with a scan tool.