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Fuel Cut Rpm: Inspection

  1. WARM UP ENGINE 

    All the engine to warm up to normal operating temperature.

  2. CONNECT HAND-HELD TESTER OR OBD II SCAN TOOL 
    1. Connect the hand-held tester or OBD II scan tool to the DLC3.
    2. Please refer to the hand-held tester or OBD II scan tool operator's manual for further details.
      Fig 1: Connecting Hand-Held Tester To DLC3
      G00894016Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT FUEL CUT-OFF OPERATION 
    Fig 2: Inspecting Fuel Cut-Off Operation
    G00894017Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Increase the engine speed to at least 3,000 rpm.
    2. Check for injector operating noise.
    3. Check that when the throttle lever is released, injector operation noise stops momentarily and then resumes.

    HINT:

    Measure with the A/C OFF.

    1. Fuel return rpm: 1,000 rpm 
  4. DISCONNECT HAND-HELD TESTER OR OBD II SCAN TOOL