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.
2. Please refer to the LEXUS hand-held tester or OBD II scan tool operator's manual for further details.

Fig 1: Connecting Lexus Hand-Held Tester Or OBD II Scan Tool To DLC3

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

Fig 2: Inspecting Fuel Cutoff RPM Operation

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HINT:

• The vehicle should be at a rest the inspection.
• Inspection with the A/C OFF.

Fuel return speed: 1,000 rpm