Fuel Cut Rpm: Inspection

Allow the engine to warm up to normal operating temperature.

1. Connect the LEXUS hand-held tester or OBD II scan tool to the DLC3.
Fig 1: Connecting Hand-Held Tester To DLC3
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2. Please refer to the LEXUS hand-held tester or OBD II scan tool operator's manual for further details.

1. Increase the engine speed to at least 2,500 rpm.
2. Check the injector for operating noise.
Fig 2: Identifying Sound Scope
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3. Check that when the throttle lever is released, injector operation noise stops momentarily and then resumes.

HINT:

• The vehicle should be at a rest the inspection.
• Inspection with the A/C OFF.
  1. Fuel return speed: 1,000 rpm