Fuel Cut Rpm: Inspection

Allow the engine to warm up to normal operating temperature.

1. Connect the TOYOTA hand-held tester or OBD II scan tool to the DLC3.
2. Please refer to the TOYOTA hand-held tester or OBD II scan tool operators manual for further details.

Fig 1: Connecting TOYOTA Hand Held Tester Or OBD II Scan Tool To DLC 3

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1. Increase the engine speed to at least 3,500 RPM.
2. Use a sound scope to check for injector operating noise.
   Fig 2: Using Sound Scope To Check For Injector Operating Noise

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3. Check that when the throttle lever is released injector, operation noise stops momentary and then resumes.

HINT:

Measure with the A/C OFF.

• Fuel return RPM: 1,400 RPM