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Просмотр инструкции снегоходы Ski Doo MX Z 2005, страница 1153
Section 05 ENGINE MANAGEMENT (2-TEC)
Subsection 03 (COMPONENT INSPECTION AND ADJUSTMENT)
This reset is very important. The setting of the
TPS will determine the basic parameters for all
fuel mapping and several ECM calculations in idle
speed control of the engine.
NOTE: Resetmustbedoneeachtimethethrottle
position sensor (TPS) is loosened or removed or
throttle body or ECM is replaced.
CAUTION: An improperly set TPS may lead to
poor engine performance.
Use the vehicle communication kit (VCK) with the
B.U.D.S. software to perform this adjustment.
Unscrew idle speed screw until the throttle body
plate stop lever rest against its zero position stop-
per screw (capped screw). If necessary, loosen
thethrottlecable. Openthrottleapproximately
one quarter then quickly release. Repeat 2 - 3
times to settle throttle plate.
Push the Reset buttonintheSetting section of
B.U.D.S.
The following message will be displayed:
Make sure the idle screw is not in contact with the
throttle stopper. Click OK to continue.
Follow instructions and click OK.
Another message will appear to ask you to per-
form a ECU tracking shut down to save the
changes into the ECU permanent memory.
Remove the tether cord cap from the DESS post
and wait until the message disappears before rein-
serting the tether cord cap.
Re-power up the ECM by pushing the START/RER
button momentarily.
The throttle opening displayed in B.U.D.S. should
be 0.00 (0.1 maximum).
If TPS is not within the allowed range while reset-
ting the Closed Throttle, the ECM will generate a
fault code and will not accept the setting.
Now, the idle speed screw has to be adjusted.
To do this, screw in the idle speed screw until
B.U.D.S. throttle opening displays value as per fol-
lowing table.
VALUE
ENGINE
TYPE
AT SEA LEVEL
ABOVE
1800 m (6000 ft)
593 SDI
3.9° ±0.1 4.9° ±0.1
If throttle cable has been loosen during the proce-
dure, adjust a throttle cable.
Start engine and make sure it operates normally
through its full engine RPM range. If fault codes
appear, refer to SYSTEM FAULT CODES in the DI-
AGNOSTIC PROCEDURES section for more infor-
mation.
CRANKSHAFT POSITION
SENSOR (CPS)
NOTE: The CPS is the trigger coil used for forward
and reverse.
1
A32C9UA
1. CPS connector
NOTE: Take into account that a CPS fault can be
triggered by missing encoder wheel teeth. First
check fault codes then check the teeth condition
if necessary. See below.
Disconnect CPS wiring harness connector. Probe
terminals coming from CPS while cranking engine.
Voltage should be within 1-2 Vac. Otherwise, in-
spect wiring and replace CPS if wiring is good.
Resistance Test
Disconnect the CPS plug connector from the
wiring harness and check the resistance of the
sensor itself.
The resistance should be between 190
and
300
.
Otherwise, replace the CPS.
If resistance tests good, reconnect the CPS and
disconnect the connector A on the ECM.
288 mmr2005-029
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