3-54 ENGINE CONTROL SYSTEM
[Low pressure side]
1. Install the emergency stop switch lock plate in position.
2. Turn ignition switch ON and check for fuel pump operating
sound.
Fuel pump operating sound:
Sounds for approx. 6 seconds only
FUEL INJECTOR OPERATING SOUND (CRANKING)
1. Remove the collector assembly. (See page 6-3, 6-6)
2. Touch a sound scope or long blade screw driver to fuel injec-
tor body as shown.
3. Crank engine and check for injector operating sound.
Injector operating sound: “Click”
4. Reinstall the collector assembly. (See page 6-5, 6-7.)
FUEL INJECTOR OPERATING SOUND (INDIVIDUAL)
1. Remove the collector assembly. (See page 6-3, 6-6)
2. Disconnect fuel injector wire and connect test cord.
" 09930-89260: Injector test cord A
3. Connect Gray wire to body ground.
4. Momentarily touch Black/Yellow wire to starter motor mag-
netic switch “B” terminal (connected to battery positive
+
terminal) and check for injector operating sound.
Injector operating sound: “Click”
!
5. Reinstall the collector assembly. (See page 6-5, 6-7.)
1
1. Low pressure fuel pump
Injector body
Click
Connecting fuel injector to battery positive for more
than a few seconds may cause injector overheating
and possible injector solenoid failure.
Click
1
1. Magnetic switch “B” terminal
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