Toyota 3S-GE Repair Manual page 56

EG-
42 ENGINE — ENGINE MECHANICAL
E3 2.
Vacuum 3-v\/ay
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P1 7976
(b)
ACOUSTIC CONTROL INDUCTION
SYSTEM (ACIS) M X"
ACIS INSPECTION °"'
1. WARM UP AND STOP ENGINE
Allow the engine to warm up to normal operating
temperature.
CONNECT TACHOMETER
(See step 2 on page EG—39)
3. CONNECT VACUUM GAUGE
Using a 3 — way connector, connect the vacuum
gauge to the hose between the VSV and actuator.
PI7974
Afldnng 4. CHECK VACUUM GAUGE
/ (a) Check that the vacuum gauge indicates vacuum at
idling.
P17975-
Check that the vacuum gauge indicates zero at 5,400
rpm or more.
HINT: If regular unleaded gasoline is used, the vacuum
gauge also indicates zero below 5,400 rpm.
5. DISCONNECT TACHOMETER