Idle Speed: Testing and Inspection

INSPECTION
1. INITIAL CONDITIONS
a. Engine is at normal operating temperature
b. Air cleaner is installed
c. All pipes and hoses of air induction systems are connected
d. All accessories are switched OFF
e. All vacuum lines are properly connected

HINT: All vacuum hoses should be properly connected.

f. SFI system wiring connectors are fully plugged
g. Ignition timing is set correctly
h. Transmission is in neutral position
i. Air conditioning switches are OFF
2. CONNECT LEXUS HAND-HELD TESTER OR OBD II SCAN TOOL
3. INSPECT IDLE SPEED
a. Race the engine speed at 2,500 rpm for approximately 90 seconds.
b. Check the idle speed.
Idle speed: 700 ± 50 rpm
If the idle speed is not as specified, check the air intake system.
4. DISCONNECT LEXUS HAND-HELD TESTER OR OBD II SCAN TOOL