The Malfunction Indicator Light (MIL) or Check Engine Light (CEL) is on; what wrong with the car?
The reason why your MIL or CEL is that the car’s on-board computer, the Engine Control Unit (ECU) programed with an On-Board Dignosis (OBD) system, is either not recieving a signal from a single or various amounts of sensors used to track and control fuel supply, and engine management / emissions systems. To determine which circuit or sensor is creating the warning can be found by using a plug-in dignostic interface that shows the user which trouble code(s) are stored by the ECU. Those code number(s) translates to a specific problem or fault on the vehilce, detailed in Volkswagen’s OEM service manuals or online around the internet. Scaning for codes can be provided by either a local dealership, favorite mechanic or at home using purchased hardware and software. If you have scanned you vehicle and want to discern what is affected on your car, head for the Tech Tips page to find trouble code explainations. Q: Does my car have the On-Board Diagnostic – v1.0 (OBDI) or On-Board Diagnostic –
