2002 Volkswagen GTI

Engine Mechanical problem
2002 Volkswagen GTI 4 cyl Two Wheel Drive Automatic 85000 miles

hi I have a 2002 vw gti. With the turbo. Recently the check engine light came on and they told me that it was the mass airflow sensor was the cause cause I wasn gettin really bad gas mileage and as well as my car didn turn on 1nce. So my brother who is a mechanic changed it for me. The light is still on and it has been almost a week now. He told me that the car has to go with cycles to turn off the light but I would like to knw if maybe I was supposed to do something else maybe program the mass aiflow sensor or somethingg. Please help.
December 16, 2009.

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