Fuel Cut RPM

INSPECTION

1. REMOVE V-BANK COVER
2. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
3. CONNECT LEXUS HAND-HELD TESTER OR OBD II SCAN TOOL





(a) Connect the LEXUS hand-held tester or OBD II scan tool to the DLC3.
(b) Please refer to the LEXUS hand-held tester or OBD II scan tool operator's manual for further details.
4. INSPECT FUEL CUT OPERATION
(a) Increase the engine speed to at least 2,500 rpm.





(b) Use a sound scope to check for injector operating noise.
(c) Check that when the throttle lever is released, injector operation noise stops momentarily and then resumes.

HINT:
- The vehicle should be stopped.
- Measure with the A/C OFF.

Fuel return rpm: 1,400 rpm

5. DISCONNECT LEXUS HAND-HELD TESTER OR OBD II SCAN TOOL
6. REINSTALL V-BANK COVER