BRP Outlander 400 EFI 2008, Руководство по обслуживанию

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Section 05 FUEL SYSTEM
Subsection 01 (ELECTRONIC FUEL INJECTION)
ELECTRONIC FUEL INJECTION
SERVICE TOOLS
Description Part Number Page
tachometer ........................................................................... 529 014 500 ......................................... 201
cable luber ............................................................................ 529 035 738 ......................................... 202
Fluke 115 multimeter ........................................................... 529 035 868 ................ 205–206, 211–213,
215, 217–219, 223–225
ECM adapter......................................................................... 529 036 085 ........ 205–206, 211–212, 215,
217–218, 220, 222–224
SERVICE PRODUCTS
Description Part Number Page
cable lubricant....................................................................... 293 600 041 ......................................... 203
Loctite 243............................................................................ 293 800 060 ................................. 212, 219
Gunk Intake Medic ............................................................... Not sold by
BRP
......................................... 214
GENERAL
SYSTEM DESCRIPTION
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1. Manifold absolute pressure and temperature sensor (MAPTS)
2. Throttle body
3. Throttle position sensor (TPS)
4. Idle air control valve (IACV)
5. Intake manifold
6. Fuel rail
7. Injector
8. Coolant temperature sensor
9. Crankshaft position sensor
The ECM is the central point of the engine man-
agement system. It reads the signals from differ-
ent sensors which indicate engine operating con-
ditions at micro-second intervals.
The ECM reads the inputs from the sensors,
makes computations, uses pre-determined pa-
rameters and activates the outputs to the injector.
Signals from sensors are used by the ECM to de-
termine the injection and ignition parameters (fuel
maps required for optimum air-fuel ratio.
Air Induction
Air flows through the air filter housing mounted
under the seat. It contains an air filter that pre-
vent dust and particles from being drawn into the
engine.
Air is then drawn through the throttle body mount-
ed on the engine intake side.
Absolute pressure and air temperature are mea-
sured in the intake manifold.
Air then flows through the intake manifold to the
combustion chamber.
Throttle Body
The 46 mm throttle body is connected to the in-
take manifold. Fitted on the throttle body, there
is the TPS and the idle air control valve which al-
lows the ECM to control the idle speed while the
throttle plate is closed.
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