Idle Speed Inspection - Toyota 3S-GTE Repair Manual

EG-33
_ ENGINE — ENGINE MECHANICAL
IDLE SPEED INSPECTION '°'"i"
1. INITIAL CONDITIONS
Engine at normal operating temperature
Air cleaner installed
All pipes and hoses of air induction system connected
All vacuum lines properly connected
EFI system wiring connectors fully plugged
Ignition timing set correctly
(H)
(bl
(cl
(d) All accessories switched OFF
(B)
(fl
(9)
(h) Transmission in neutral position
2. CONNECT TACHOMETER
(See step 2 on page EG—31)
Z500 rpm 90 seconds 3. INSPECT IDLE SPEED
(a) Race the engine at 2,500 rpm for approx. 90 seconds.
R PM
Tachometer
EC0137 EMB144
men
___..-oi
ORPM
Tachometer
P02463 Z9997?
(b) Check the idle speed.
Idle speed:
w/ Daytime running light system
750 1' 50 rpm
w/o Daytime running light system
700 i 50 rpm
If the idle speed is not as specified, check the ISC
valve.
4. DISCONNECT TACHOMETER