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Home >> Lexus >> 1996 >> ES 300 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Fuel System >> Fuel Cut System Operation
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Fuel Cut System Operation

  1. Remove "V" bank cover from top of engine. Start and warm engine to operating temperature. Turn A/C off. Use a stethoscope to listen for injector operating noise (or feel for vibration with finger).
  2. Increase engine speed to at least the following specification. See CONNECTING TACHOMETER under ENGINE/VIN ID .
    • 3500 RPM
  3. Release throttle lever. When throttle lever is released, injectors should stop operating until engine speed decreases to 1200 RPM.
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