- Тип техники
- Бренд
Просмотр инструкции снегоходы Ski Doo MX Z 2005, страница 1193
Section 06 ENGINE MANAGEMENT (4-TEC)
Subsection 03 (COMPONENT INSPECTION AND ADJUSTMENT)
R1503motr167A
3
2
1
TPS
Disconnect plug connector from throttle position
sensor. To unlock connector, press the release
tab. To see the connector pin-out, temporarily re-
move the connector shield joining the harness, to
expose the pin numbers. Connect a voltmeter be-
tween pin 1 and 3 and also between pin 1 and 2
in the wiring harness.
Install the tether cord cap, then depress the cut-
out switch and push start button momentarily to
activate the ECM.
Check the voltage readings as follows.
CONNECTION VOLTAGE
Pin 1 with engine ground 0V
Pin 2 with engine ground 5V
Pin 3 with engine ground 4.75 - 5 V
NOTE: Make sure the engine is properly ground-
ed.
If voltage test is good, replace the TPS.
If voltage test is not good, check the resistance 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.
The resistance should be 1600 - 2400
.
Check the resistance between terminal A-24 and
terminal A-39 with the throttle plate in idle posi-
tion.
The resistance should be approximately 2500
.
Check the resistance between terminal A-24 and
terminal A-39 with the throttle plate in wide open
position.
The resistance should be 1000 - 1100
.
Check the resistance between terminal A-24 and
A-25 with throttle plate in idle position.
The resistance should be 1000 - 1100
.
Now check the resistance with the throttle plate
in wide open position.
The resistance should be 2600 - 2700
.
NOTE: When measuring between pins A-24 and
A-39, resistance value decreases while depress-
ing throttle lever. when measuring between pins
A-24 and A-25, resistance value increases while
depressing throttle lever. The resistance value
should change smoothly and proportionally to
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.
mmr2005-032 329
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