Tacoma Regular Cab 4WD L4-2.7L (3RZ-FE) (1999)
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 check correctly
h. Transmission in neutral position
2. CONNECT TOYOTA HAND-HELD TESTER OR OBDII SCAN TOOL
3. INSPECT IDLE SPEED
a. Race the engine speed at 2,500 rpm for approx. 90 seconds.
b. Check the idle speed.
Idle speed: 650 - 750 rpm
If the idle speed is not as specified, check the IAC valve, intake air leakage and SFI system.
4. DISCONNECT TOYOTA HAND-HELD TESTER OR OBDII SCAN TOOL