Toyota MR2 1988 Repair Manual page 54

Idle Speed Adjusting---!
Screw
ENGINE MECHANICAL - Engine Tune-up EM-11
Check Connector
~·w
EM4664
EM4630
INSPECTION AND ADJUSTMENT OF
IGNITION TIMING
(See page IG-11)
INSPECTION AND ADJUSTMENT OF IDLE
SPEED (4A-GE)
(See page MA-7)
INSPECTION AND ADJUSTMENT OF IDLE
SPEED (4A-GZE)
1. INITIAL CONDITIONS
(a) Engine at reach normal operating temperature
(b) Air cleaner installed
(c) All pipes and hoses of air induction system con-
nected
(d) All vacuum lines connected
NOTE: All vacuum hoses for EGR systems, etc. should
be properly connected.
(e) EFI system wiring connectors fully plugged
(f) All accessories switched OFF
(g) Transmission in "N" range
2. CHECK ISC VALVE SYSTEM (See page Fl-106)
3. CONNECT TACHOMETER (See page IG-2)
4. ADJUST IDLE SPEED
(a) Using a service wire, short terminals T and E
1
of
check connector.
(b) Check the idle speed.
Idle speed: 800 rpm
(c) If the idle speed is not as specified, adjust the idle
speed by turning the IDLE SPEED ADJUSTING
SCREW.
NOTE: Only when the IDLE SPEED ADJUSTING SCREW
is fully closed is 850 - 900 rpm possible.
(d) Remove the service wire.