Toyota 2GR-FE Manual page 559

2
CHECK VACUUM
OK
3
INSPECT DUTY VACUUM SWITCHING VALVE (OPERATION)
G
F
H
OK
4
INSPECT DUTY VACUUM SWITCHING VALVE (RESISTANCE)
Component Side:
C34
2
OK
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
(a) Start the engine.
(b) Disconnect the vacuum hose from the air cleaner cap.
(c) Check that the disconnected port located on the vacuum
tank applies suction to your finger.
OK:
Vacuum pressure exists.
(d) Reconnect the vacuum hose.
NG
G041079
(a) Remove the VSV for ACM.
(b) Check operation of the VSV for ACM when positive
battery voltage is applied to the terminals of the VSV for
ACM connector.
Positive battery voltage is not applied:
The air from pipe G is flowing out through pipes E
and H.
E
Positive battery voltage is applied:
The air from pipe F is flowing out through pipes E
G
and H.
(c) Reinstall the VSV for ACM.
NG
E
F
H
A052014E04
(a) Disconnect the C34 VSV for ACM connector.
(b) Measure the resistance between terminals 1 and 2.
Standard resistance:
19 to 21 Ω at 20°C (68°F)
(c) Reconnect the VSV for ACM connector.
NG
1
C058536E23
CHECK AND REPLACE VACUUM SOURCE
AND HOSES
REPLACE DUTY VACUUM SWITCHING
VALVE
REPLACE DUTY VACUUM SWITCHING
VALVE
ES–403
ES