Fuel Cut RPM

INSPECTION

1. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
2. CONNECT LEXUS HANDHELD TESTER OR OBD II SCAN TOOL





(a) Connect a 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.
3. INSPECT FUEL CUTOFF RPM OPERATION
(a) Increase the engine speed to at least 2,500 rpm.





(b) 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 speed: 1,000 rpm

4. DISCONNECT LEXUS HAND-HELD TESTER OR OBD II SCAN TOOL