An Engine Diagnostic (or Scope Test) determines what corrections are required during a tune-up to get your engine running smoothly again.
Computer analysis of spark plugs, ignition wires, the distributor cap, rotor and coils, as well as the oxygen sensor and fuel injection system.
At your vehicle's recommended spark plug service interval, as specified in the owner's manual, or when experiencing any of the following symptoms:
If the Check Engine Light comes on while driving or remains on, it is a warning of an emissions or sensor problem and should be analyzed. If the light flashes, the condition is more severe and must be checked immediately to prevent catalytic converter damage.
If the Check Engine Light comes on, be sure to take the car in for a diagnostic test If the light flashes, the problem is more serious and should be checked immediately
The ignition system provides electrical energy to the spark plug. If the electrical charge is not delivered at the proper time and at its recommended strength, the engine will not function properly. The warning light on your dashboard is an indication that the on-board computer system has detected components operating outside their acceptable range. This can be an indication of a minor problem or one that may require immediate attention