Fuel Cut RPM Inspection

FUEL CUT OFF INSPECTION




1. REMOVE V-BANK COVER.
- Using a 5 mm hexagon wrench. remove the 2 cap nuts.
- Disconnect the 2 clips, and remove the 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.
- Remove the fuse cover on the instrument panel.
- Connect the LEXUS hand-held tester or OB II scan tool to the DLC3.
- Please refer to the LEXUS hand - held tester or OBD II scan tool operator's manual for further details.
4. INSPECT FUEL CUT OFF RPM.
- Increase the engine speed to at least 3,500 rpm.




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

HINT: Measure with the A/C OFF.

Fuel return rpm: 1,200 rpm

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

HINT: For fixing the V-bank cover, push on the cover until a "click is felt.