Fuel Cut Rpm Inspection - Lexus 2005 IS300 User Manual

SF-76
Sound Scope
2005 LEXUS IS300 (RM1140U)
SFI
FUEL CUT RPM
INSPECTION
1. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
2. CONNECT HAND-HELD TESTER OR OBD II SCAN
TOOL
Hand- held
(a) Connect the hand-held tester or OBD II scan tool to the
Tester
DLC3.
(b) Select the following menu items: DIAGNOSIS / EN-
HANCED OBD ll / DATA LIST / ENGINE SPD.
(c) Please refer to the hand-held tester or OBD II scan tool
operator's manual for further details.
D09381
3. INSPECT FUEL CUT-OFF OPERATION
(a) Increase the engine speed to at least 3,000 rpm.
(b) Check for injector operating noise.
(c) Check that when the throttle lever is released, injector op-
eration noise stops momentarily and then resumes.
HINT:
Measure with the A/C OFF.
Fuel return rpm: 1,000 rpm
4. DISCONNECT HAND-HELD TESTER OR OBD II SCAN
B01568
TOOL
- FUEL CUT RPM
Author :
SF0OH-09
Date :
1457