WHY IS THE EMISSION LIGHT ON IN THE DASH THE CAR...
2002 Volvo 240
Why is the emission light on in the dash the car is running and driving perfectly it came on about a month ago but went off now it is on again for about a week
Wednesday, February 13th, 2013 AT 5:36 PM
The Engine Computer detected a problem, set a diagnostic fault code, and turned on the Check Engine light to let you know. The place to start is by having the code read. That will get you to the circuit or system that needs further diagnosis.