Suzuki DF 40 - Other Inspection

ENGINE CONTROL SYSTEM 3-36
"Click"
Gr
B/Y
OTHER INSPECTION
FUEL INJECTOR OPERATING SOUND (CRANKING)
(1) Touch a sound scope or long blade screw driver to fuel in-
jector body as shown.
(2) Crank engine and check for injector operating sound.
Injector operating sound : “Click”
FUEL INJECTOR OPERATING SOUND (INDIVIDUAL)
(1) Disconnect fuel injector wire, and connect the test cord.
09930-89260 : Injector test cord A
(2) Connect Gray wire to body ground.
(3) Momently touch Black/Yellow wire to starter motor relay right
terminal (connected to battery positive (+) terminal), and
check for injector operating sound.
Injector operating sound : “Click”
NOTE1:
Disconnect remote control wire harness, and connect tester
probe to terminal
A (Gray wire).
Starter
motor
relay
ECM
E
D
C
B
A
z
FUEL INJECTOR OPERATING SIGNAL
09930-89930 : 8-pin test cord
Peak voltmeter Stevens CD-77
Tester range : NEG50
z
q
(1) Connect the test cord as shown, then turn ignition switch
ON.
(2) Connect the tester probe- (Black) to starter motor relay
right terminal (connected to battery positive (+) terminal)
as shown.