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 accessories switched OFF
e. All vacuum lines properly connected

HINT: All vacuum hoses for EGR system, etc. should be properly connected.

f. SFI system wiring connectors fully plugged
g. Ignition timing checked correctly
h. Transmission in neutral position

2. CONNECT TOYOTA HANDHELD TESTER OR OBDII SCAN TOO
3. INSPECT IDLE SPEED
a. Race the engine speed at 2,500 rpm for approximately 90 seconds.
b. Check the idle speed.

Idle speed: 650 ± 50 rpm

If the idle speed is not as specified, check the Idle Air Control (IAC) valve.
4. DISCONNECT TOYOTA HAND-HELD TESTER OR OBDII SCAN TOOL