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. Refer to the TOYOTA hand-held tester or OBD II scan tool operator's manual for further details.

Fig 1: Connecting Toyota Hand-Held Tester Or OBD II Scan Tool

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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.
3. When the throttle lever is released, check that injector operation noise stops momentarily and then resumes.

Fuel return RPM: 

1,400 RPM 

Fig 2: Identifying Sound Scope

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