Thread: Glow Shift 3 Cyl Tach in a Metro
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Old 03-05-2009, 03:41 PM   #14 (permalink)
TestDrive
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Join Date: Aug 2008
Location: South Dakota
Posts: 460

WonderWagon - '94 Ford Escort LX
Last 3: 51.52 mpg (US)

DaBluOne - '99 Ford Escort SE
90 day: 48.97 mpg (US)

DaRedOne - '99 Ford Escort ZX2 Hot
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Could be an intake/vacuum leak.
  1. Engine idles down
  2. Mixture goes lean due to leak.
  3. ECU adds additional fuel which causes faster idle
  4. ECU adjusts fuel mixture down due fast idle.
Rinse and repeat.
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