Ski-Doo Ski Doo MX Z 2005 [1152/1429] Closed throttle reset

Ski-Doo Ski Doo MX Z 2005 [1152/1429] Closed throttle reset
Section 05 ENGINE MANAGEMENT (2-TEC)
Subsection 03 (COMPONENT INSPECTION AND ADJUSTMENT)
Check the continuity between pin 3 on wiring har-
ness TPS connector and pin 24 on wiring harness
ECM connector.
If tests are good, replace the TPS.
If voltage tests are not good, continue to check
the resistance of the rest of the TPS circuit.
Resistance Test
Reconnect the TPS.
Disconnect the connector A from the ECM.
R1503motr191A
24
39
25
Using a multimeter, check resistance value be-
tween terminal A-25 and A-39.
Theresistanceshouldbe1600-2400
in any
throttle position.
Check the resistance between terminal A-24 and
terminal A-39 with the throttle plate in idle posi-
tion.
The resistance should be approximately 1000
.
Check the resistance between terminal A-24 and
terminal A-39 with the throttle plate in wide open
position.
The resistance should be 2500
.
Check the resistance between terminal A-24 and
A-25 with throttle plate in idle position.
The resistance should be 2500
.
Now check the resistance with the throttle plate
in wide open position.
The resistance should be approximately 1000
.
NOTE: When measuring between pins A-24 and
A-39, resistance value increases while depress-
ing throttle lever. When measuring between pins
A-24 and A-25, resistance value decreases while
depressing throttle lever. The resistance value
should change smoothly and proportionally to the
throttle movement. Otherwise, replace TPS.
If resistance values are correct, try a new ECM.
Refer to ECM REPLACEMENT procedures else-
whereinthissection.
If resistance values are incorrect, repair connector
or replace the wiring harness between ECM con-
nector and the TPS.
Replacement
Remove the throttle body as described above.
Loosen two screws retaining the TPS.
Remove TPS.
A32C9RB
1
2
THROTTLE BODY
1. Throttle position sensor (TPS)
2. Screws
Install the new TPS.
Apply Loctite 243 on the TPS retaining screws,
then torque to 3 Nm(27lbfin).
Reinstall remaining removed parts.
ProceedwiththeClosed Throttle Reset.Seebe-
low.
Closed Throttle Reset
NOTE: This operation performs a reset of the val-
ues in the ECM.
mmr2005-029 287

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