Question about 2001 Volkswagen Passat
2001 vw pasaat engine light is on?
The check engine light coming on indicates that a "trouble code" has been set by the onboard computer and is stored in it's memory. There is a wide range of possible causes, such as bad sensor(s), wiring faults, leaking or disconnected vacuum line(s), out of acceptible range engine environmental variables... Some manufacturers even program the light to come when the maintenance schedule calls for service! (a clever ploy!)
The good news is that most of the larger auto parts stores now offer free computer diagnostic scans, where they can read the trouble code and reset/clear the check engine light. Some causes are a LOT more serious than others, so act accordingly on the indicated problem... and some causes are merely "glitches" in the system when there really is nothing wrong!
Hope this is helpful, and good luck with the Passat... nice car!
Posted on Jun 03, 2008
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Posted on Jan 02, 2017
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