The Aircare repair process first involves a thorough diagnosis of your engine, fuel & ignition systems along with your emission control devices to find the cause of the failure.  Sometimes only one component is at fault while at other times many items may be responsible. We then prioritize which components are most important to successfully repairing your vehicle. After your authorization we will perform repairs and retest to be sure that it passes. As an added bonus we take your vehicle through the test to be sure that it fully passes. More helpful information can be found by visiting AirCare's website.