C32" (P0201), "C33" (P0202), "C34" (P0203) Or "C35" (P0204) Primary Fuel Injector Circuit Malfunction - Suzuki GSX-R750 Service Manual

"C32" (P0201), "C33" (P0202), "C34" (P0203) or "C35" (P0204)
PRIMARY FUEL INJECTOR CIRCUIT MALFUNCTION
DETECTED CONDITION
CKP signal is produced but fuel injector signal is
interrupted by 4 times or more continuously.
ECM
#11
#21
#31
#41
INSPECTION
Step 1
1) Turn the ignition switch OFF.
2) Lift and support the fuel tank (5-3)
3) Check the injector coupler for loose or poor contacts.
If OK, then measure the injector resistance.
4) Disconnect the injector coupler and measure the resistance
between terminals.
 Injector resistance: 11 – 13 Ω at 20 °C (68 °F)
Gr/W
Gr/B
Gr/Y
Gr/R
#4 #3
Primary fuel injector
(Terminal – Terminal)
POSSIBLE CAUSE
• Injector circuit open or short
• Injector malfunction
• ECM malfunction
Fuel pump relay
Y/R
#2 #1
1
1
FI SYSTEM DIAGNOSIS 4-77
To engine
stop switch