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Home >> Porsche >> 1985 >> 944 Standard >> Repair and Diagnosis >> Engine Performance >> System >> DME System >> Testing >> Throttle Switch >> Checking Coasting Fuel Shutoff

Checking Coasting Fuel Shutoff

  1. With engine at speed, bridge disconnected plug of idle switch with a jumper wire. Accelerate engine to approximately 1300 RPM. Engine should begin to surge (this is coasting fuel shutoff).
  2. If engine does not surge, check wire between idle switch plug and control unit plug for breaks according to wiring diagram. If necessary, replace control unit.
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