Suzuki GSX-R 1000 Service Manual: Fuel pump inspection
Turn the ignition switch on and check that the fuel pump operates for a few seconds.
If the fuel pump motor does not make operating sound, inspect the fuel pump circuit connections or inspect the fuel pump relay and to sensor. Refer to “fuel pump relay inspection” and “dtc “c23” (p1651- h/l): to sensor circuit malfunction” in section 1a .
If the fuel pump relay, to sensor and fuel pump circuit connections are ok, the fuel pump may be faulty, replace the fuel pump with a new one. Refer to “fuel pump disassembly and assembly” .
Fuel pressure inspection
Keep away from fire or spark.
Spilled gasoline should be wiped off
immediately.
Work in a well-ventilated area.
Inspect the fuel pressure in the following ...
Fuel discharge amount inspection
Keep away from fire or spark.
Spilled gasoline should be wiped off
immediately.
Work in a well-ventilated area.
Inspect the fuel discharge amo ...
Other materials:
Dtc “c36” (p1764), “c37” (p1765), “c38” (p1766) or “c39” (p1767): secondary
fuel injector circuit
malfunction
Detected condition and possible cause
Detected condition
Possible cause
Some failure exists in the fuel injector signal in a high
load, high revolution condition.
Injector circuit open or short.
Injector malfunction.
Ecm malfunction.
...
Fuel pressure inspection
Keep away from fire or spark.
Spilled gasoline should be wiped off
immediately.
Work in a well-ventilated area.
Inspect the fuel pressure in the following procedures:
lift and support the fuel tank. Refer to “fuel tank removal and
installati ...
Exhaust control system operation
The excs is operated by the signal supplied from the ecm. The open/close
operation of the excv is performed by
the excva which is controlled by the ecm by changing the current direction of
the actuator motor. The position
sensor (incorporated in the excva) detects the excva movement by measuri ...