B12669
SF0IN-03
B00720
Sound Scope
B00719
Ohmmeter
-
SFI
INJECTOR
SF-21
1096
Author:
Date:
2001 SIENNA (RM787U)
INJECTOR
ON-VEHICLE INSPECTION
1.
REMOVE V-BANK COVER
(a)
Using a 5 mm hexagon wrench, remove the 3 cap nuts.
(b)
Loosen the V-bank cover fastener counterclockwise.
(c)
Remove the V-bank cover.
2.
INSPECT INJECTOR OPERATION
Check operation sound from each injector.
(1)
With the engine running or cranking, use a sound
scope to check that there is normal operating noise
in proportion to engine speed.
(2)
If you have no sound scope, you can check the in-
jector operating vibration with your finger.
If no sound or unusual sound is heard, check the wiring connec-
tor, injector or injection signal from the ECM.
3.
INSPECT INJECTOR RESISTANCE
(a)
Disconnect the injector connector.
(b)
Using an ohmmeter, measure the resistance between the
terminals.
Resistance: 13.4 - 14.2
Ω
at 20
°
C (68
°
F)
If the resistance is not as specified, replace the injector.
(c)
Reconnect the injector connector.
4.
REINSTALL V-BANK COVER
HINT:
For fixing the V-bank cover, push on the cover until a ”click” is
felt.
