Toyota 4A-FE Repair Manual page 20

ENGINE MECHANICAL - Engine Tune-up {4A-FE)
\ Idle Speed
\~Adjusting
Screw
~
EM6886
INSPECTION AND ADJUSTMENT OF
IDLE SPEED (w/ TWC)
1. INITIAL CONDITIONS
{a) Air clearance installed
(b) Normal engine operating temperature
(c)
All pipes and hoses of air induction system con-
nected
{d) All vacuum lines connected
HINT: All vacuum hoses for EGR systems, etc. should be
properly connected.
(e)
All
accessories switched off
(f) EFI system wiring connectors fully plugged
{g) Ignition timing set correctly
(h)
Transmission in "neutral" range
2. WARM UP ENGINE
Allow the engine to reach normal operating temperature.
3. CONNECT TACHOMETER (See page EM-20)
4. CHECK AIR VALVE OPERATION
{See page Fl-131)
5. INSPECT AND ADJUST IDLE SPEED
Idle speed: 800 rpm
(w/ Cooling fan OFF)
If not
as
specified, adjust the i die speed by turning the
IDLE SPEED ADJUSTING SCREW.