The light could be a minor issue such as a faulty gas cap or it could mean something more serious such as a misfiring engine.
What does a solid yellow check engine light mean.
Not replacing a broken oxygen sensor can eventually lead to a busted catalytic convertor which can cost upwards of 2 000.
Next step schedule check engine light is on inspection.
If the check engine light is flashing it is in your best interest to cease driving until the light has been diagnosed and repaired.
It stopped me for a minutes then i started back driving and it stop me again.
Taking your car into a shop will cost you around 200.
What you should do.
When it finds a problem in the electronic control system that it can t correct a computer turns on a yellow warning indicator labeled check engine service engine soon or check.