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Home >> Audi >> 1990 >> 200 Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Fuel System >> Fuel Control (Cis-E III) >> Deceleration Fuel Shutoff

Deceleration Fuel Shutoff

  1. Warm engine to normal operating temperature. Disconnect differential pressure regulator harness connector. See Figure for location of differential pressure regulator harness connector.
  2. Using Adapter (VW 1315 A/1), connect Multimeter (US 1119) to differential pressure regulator and harness connector. See Figure . Set multimeter to 200 mA DC scale.
  3. Accelerate engine above 3000 RPM. Release throttle and note reading on multimeter. Reading should decrease to about -50 mA with throttle closed until engine speed reaches approximately 1200 RPM.
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