this vehicle is surging at 40mph what seems to be the problem?

1995 MAZDA MPV
180,000 MILES
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LEILANIKUMUNALU
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  • 1 POST
drives fine until you get to 40mph then surging?
Mar 4, 2012 at 7:20 PM
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KHLOW2008
  • ✓ASE Certified Mechanic
  • 41,814 POSTS
  • ASE Certified Mechanic
Is the MIL showing?

There are many possible causes for such conditions and one of it is the EGR system.

The throttle body and position sensor is another.
Mar 4, 2012 at 7:56 PM
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