Idle Speed Inspection And Adjustment; Initial Conditions - Toyota 22R-E Service Manual

ENGINE – ENGINE MECHANICAL
IDLE SPEED INSPECTION AND
ADJUSTMENT

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 systems, etc. should be
properly connected.
(f) MFI system wiring connectors fully plugged
(g) Ignition timing set correctly
(h) Transmission in neutral position
2. CONNECT TACHOMETER
Connect the test probe of a tachometer to terminal IG (–)
of the data link connector 1.
NOTICE:
|Never allow the tachometer terminal to touch ground
as it could result in damage to the ign¿ter and/or. igni-
tion coil.
As some tachometers are not compatible with thi-
signition system, we recommend that you confirm the
compatibility of your unit before use.
3. ADJUST IDLE SPEED
(a) Race the engine speed at 2,500 rpm for approx. 90
seconds.
(b) Check the idle speed.
Idle speed:
800 50 rpm
(c) Adjust the idle speed by turning the idle speed adjusting
screw.
4. DISCONNECT TACHOMETER
EG2–27