I just fixed this problem on my Zetec (Thanks to this forum.)

Try cleaning your MAF. This can be found just after the Air Filter Cover. Unclamp it from the Air filter and use some electronics contact cleaner spray on it. After you have sprayed it to clean it, unplug fuses #4 and #11 for 2 min. to clear the PCM.

My Mystique acts like it was brand new now!


'97 Mercury Mystique GS (Not mine anymore...) Now running a Toyota Matrix XR Red, 16" wheels, Sunroof, VVT-i