Fuel Cut Rpm: Inspection

Allow the engine to warm up to normal operating temperature.

1. Connect a hand-held tester to the Controller Area Network Vehicle Interface Module (CAN VIM). Then connect the CAN VIM to the Date Link Connector 3 (DLC3).
   Fig 1: Connecting Toyota Hand-Held Tester To DLC3

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Please refer to the hand-held tester operator's manual for further details.

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT:

   • The vehicle should be stopped.
   • Measure with the A/C OFF.

     Fuel return speed: 1,400 RPM 

4. Disconnect the hand-held tester and CAN VIM from the DLC3.