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Просмотр инструкции снегоходы Ski Doo MX Z 2005, страница 1173
Section 06 ENGINE MANAGEMENT (4-TEC)
Subsection 02 (DIAGNOSTIC PROCEDURE)
For more information pertaining to the code faults
(state, count, first, etc.) and report, refer to
B.U.D.S. online help.
Supplemental Information
– Electrical noise is picked up by the ECM. Ensure
that all connections are in good condition, also
grounds (battery, ECM, engine and ignition sys-
tem), they are clean and well tightened and that
all electronic components are genuine — partic-
ularly in the ignition system. Installing non-re-
sistive spark plugs may lead to generate fault
code.
– Electrical noise might also lead engine to oc-
casional cutout without generating a fault code
when engine is restarted.
– If everything is in good condition, try a new
ECM.
When using the service action suggested in the
Fault section of B.U.D.S., the system circuits are
referred to as DA-41, which means connector
“DA” on the ECM and the circuit 41.
TPS (Throttle Position Sensor) Faults
Faults which are reported in B.U.D.S. fall into two
groups TPS faults and adaption faults. These are
displayed on the B.U.D.S. system as TPS OUT OF
RANGE and TPS ADAPTION FAILURE.
4-TEC TPS FAULT TABLES
TPS “OUT OF RANGE” Fault
It is caused by the sensor reading going out of its allowable range. This fault can occur during the whole
range of movement of the throttle.
To diagnose this fully, it is recommended to operate the throttle through its full range. It is also recom-
mended to release the throttle quickly as this may also reveal a fault that is intermittent.
POSSIBLE CAUSES ACTION
Check if connector is disconnected from TPS Fix.
Check if sensor is loose
Fix and reset
Closed Throttle and Idle Actuator
.
Inspect sensor for damage or corrosion
Replace and reset
Closed Throttle and Idle Actuator
.
Inspect wiring (voltage test) Repair.
Inspect wiring and sensor (resistance test)
If bad wiring, repair.
If bad TPS, replace and reset
Closed
Throttle and Idle Actuator
.
Test sensor operation (wear test)
Replace and reset
Closed Throttle and Idle Actuator
.
TPS “ADAPTATION FAILURE” Fault
It is caused by the idle position moving out of an acceptable range.
Following problems can be caused by a TPS “Adaption Failure“:
– Idle speed is out of range.
– Engine stops, when throttle is released quickly.
– Engine runs inconsistent in low partload or low RPM.
308 mmr2005-033
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