Section 07
ENGINE MANAGEMENT (4-TEC)
Subsection 04
(DIAGNOSTIC PROCEDURES)
07-04-6
SMR2002-079 _07-04A.FM
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 show up a fault that is intermittent.
TPS “ADAPTATION FAILURE” Fault
It is caused by the idle position moving out of an acceptable range.
Following failures can be effected 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.
POSSIBLE CAUSES
RESULT
ACTION
Check if connector is disconnected from TPS
Yes
• Fix.
Check if sensor is loose
Yes
• Fix and reset
Closed Throttle and
Idle Actuator
.
Inspect sensor for damage or corrosion
Yes
• Replace and reset
Closed Throttle and
Idle Actuator
.
Inspect wiring (voltage test)
Failed
• Repair.
Inspect wiring and sensor (resistance test)
Failed
• 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
.
POSSIBLE CAUSES
RESULT
ACTION
Sensor has been replaced and TPS closed
position not reset
Yes
• Reset
Closed Throttle and Idle Actuator
.
Throttle body has been replaced and TPS
closed position not reset
Yes
• Reset
Closed Throttle and Idle Actuator
.
EMS ECU has been replaced and TPS closed
position not reset
Yes
• Reset
Closed Throttle and Idle Actuator
.
Throttle cable too tight
Yes
• Fix and reset
Closed Throttle and
Idle Actuator
.
Sensor is loose
Yes
• Fix and reset
Closed Throttle and
Idle Actuator
.
Throttle bracket is loose
Yes
• Fix and reset
Closed Throttle and
Idle Actuator
.
Adjustment screw worn or loose
Yes
• Change throttle body.
Idle bypass valve replaced but not reset
Yes
• Reset
Closed Throttle and Idle Actuator
using B.U.D.S.
www.SeaDooManuals.net
Summary of Contents for GTX 4-TEC 5573 2002
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