Idle Speed: Testing and Inspection

INSPECTION
1. INITIAL CONDITIONS
a) Engine at normal operating temperature
b) Air cleaner installed
c) All pipes and hoses of air induction system connected
d) All vacuum lines properly connected
e) SFI system wiring connectors fully plugged
f) All operating accessories switched OFF
g) Ignition timing check correctly
h) Transmission in neutral position
i) Air conditioning switched OFF





2. CONNECT LEXUS HAND-HELD TESTER OR OBDII SCAN TOOL
a) Remove the fuse cover on the instrument panel.
b) Connect a LEXUS hand-held tester or OBDII scan tool to the DLC3.
c) Please refer to the LEXUS hand-held tester or OBDII scan tool operator's manual for further details.
3. INSPECT IDLE SPEED
a) Race the engine at 2,500 rpm for approx. 90 seconds.
b) Check the idle speed.
Idle speed (w/ Cooling fan OFF): 750 ± 50 rpm
If the idle speed is not as specified, check the air intake system.
4. DISCONNECT LEXUS HAND-HELD TESTER OR OBDII SCAN TOOL