© 2001 Cannondale Corporation - All Rights Reserved
60
X440s Owner's Manual.fm
FUEL INJECTORS (LEFT AND RIGHT)
The fuel injectors are located in the throttle body and are
positioned as close as possible to the back of the intake
valves. The spray pattern and flow rate of the injectors are
fixed, but the length of time they remain open is variable.
The duration that the injectors stay open is calculated by the
ECM using data received by the various sensors.
FUEL PUMP
The fuel pump is located on the left side of the vehicle and is
mounted on the engine rail. When the engine management
system is first “powered-up” (accomplished by pressing the
start button without running the starter motor) this pump
activates for 3 seconds to pressure the fuel system then
turns off again until the engine starts. When the engine
starts, it resumes pumping providing pressurized fuel to the
injectors. The three second pressurizing cycle may have to
be repeated if the pump does not recieve adequate fuel
during the first three seconds (e.g., fuel lines drained or tank
empty). To activate the pressurizing cycle, moemtarily press
the start button without activating the starter motor.
FUEL PRESSURE REGULATOR
The fuel pressure regulator is mounted on the right side of
the vehicle on the engine rail. This device maintains the
correct fuel pressure and returns fuel to the tank after it
passes the fuel injectors.
1.
Left fuel injector
2.
Right fuel injector
1
2
Components have been removed for this photo.
INLET
OUTLET
FROM RIGHT
FUEL INJECTOR
TO FUEL TANK
BAROMETRIC
PRESSURE HOSE
CONNECT
