Electronic Fuel Injection; Removing Throttle Body; Torque Specifications - Arctic Cat 2011 Prowler HDX Service Manual

Fuel/Lubrication/Cooling
NOTE: Some photographs and illustrations used
in this section are used for clarity purposes only
and are not designed to depict actual conditions.
NOTE: Critical torque specifications are located
in Section 1.
SPECIAL TOOLS
A number of special tools must be available to the techni-
cian when performing service procedures in this section.
Refer to the current Special Tools Catalog for the appro-
priate tool description
.
Description
Oil Pressure Test Kit
Tachometer
NOTE: Special tools are available from the Arctic
Cat Service Parts Department.

Electronic Fuel Injection

! WARNING
Whenever the gasline hoses are removed (other
than for pressure testing), the battery must be dis-
connected to prevent inadvertent activation of the
electronic fuel pump.
! WARNING
Whenever any maintenance or inspection is per-
formed on the fuel system during which there may
be fuel leakage, there should be no welding, smok-
ing, open flames, etc., in the area.
TROUBLESHOOTING
1. Verify that the electric fuel pump is operating by lis-
tening for a "whirring" sound for approximately
three seconds after the ignition switch is turned to the
ON position. If no sound can be heard, see Electric
Fuel Pump/Fuel Level Sensor in this section.
2. Check for a flashing EFI icon on the LCD. If EFI is
flashing, see ECU Error Codes in Section 5.
3. Make sure there is sufficient, clean gas in the gas
tank.
4. Verify that the battery is sufficiently charged to crank
the engine over at normal speed.
5. Check the air filter housing and air filter for contam-
ination. Clean or replace as necessary (see Section
2).
4-2

REMOVING THROTTLE BODY

1. Turn the ignition switch to the OFF position; then
remove the ignition switch key.
Do not turn the ignition switch to the ON position
with the hoses removed. Gasoline will be pumped by
the electric fuel pump causing a safety hazard.
2. Remove the seat, seat back, and seat base; then dis-
connect the battery.
3. Remove the air inlet boot between the air filter and
throttle body; then disconnect the MAP sensor con-
nector (A), fuel injector connector (B), and ISC con-
nector (C).
p/n
0644-495
0644-275
4. Remove the screw from the throttle arm cover and
remove the cover; then loosen the jam nut and dis-
connect the throttle cable.
Manual
Table of Contents
! WARNING
HDX048A
HDX043A
HDX044A