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Просмотр инструкции снегоходы Ski Doo MX Z 2005, страница 277
Section 06 ENGINE MANAGEMENT (SDI)
Subsection 03 (COMPONENT INSPECTION, REPLACEMENT AND ADJUSTMENT)
FUEL INJECTORS
Leakage Test and Fuel Flow
Measurement
Preparation
First ensure fuel pressure is within specifications.
The injectors and fuel rail have to be removed to-
gether from the engine. Do not remove injectors
from the fuel rail. Refer to REMOVAL in FUEL
RAIL REPLACEMENT as necessary.
To ensure continuous fuel availability for the elec-
tric fuel pump, first fill up fuel tank prior to perform-
ing the following tests. This is required because
engine is not running to activate diaphragm fuel
pump with the crankcase pulses.
Leakage Test
Place each injector in a clean bowl.
Install the tether cord cap on the DESS post and
press the engine START/RER button to activate
the fuel pump.
Check for fuel leakage from the injector nozzle.
There should be less than 1 drop per minute. Per-
form the test for 2 minutes.
If not within specification, replace the fuel injec-
tor(s).
Fuel Injector Flow Measurement
Manual Start Models
To continuously supply the electric fuel pump for
the tests, an external 12V battery is required. The
small battery on the vehicle is not sufficient.
All Models
Use an appropriate burette graduated for 25 mL
(.85 US on). The Pirex
®
no 3075 (or equivalent)
works fine.
A33C5VA
Place injector inside top of burette.
A33C5WA
Connect vehicle communication kit (VCK) and use
B.U.D.S. software. Install the tether cord cap on
the DESS post and press the engine START/RER
button to wake up the ECM.
Use appropriate wires and connect fuel pump di-
rectly to battery posts to continuously supply fuel
pump.
Energize the appropriate injector under Injector
Flow Measurement in Activation tab.
262 mmr2005-081
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