Sea-doo 2005 4-Tec models User Manual

Section04ENGINEMANAGEMENT(15034-TEC)
Subsection 03 (COMPONENT INSPECTION, REPLACEMENT AND ADJUSTMENT)
Resistance Test
Disconnect the connector from the MATS and
check the resistance of the sensor itself.
The resistance should be between 2280 and
2740
at 20°C(68°F).
Otherwise, replace the MATS.
If resistance tests good, reconnect the MATS and
disconnect the ECM connector A on the ECM.
Using a multimeter, recheck resistance value be-
tween terminals 7 and 21.
If resistance value is correct, try a new ECM. Refer
to ECM REPLACEMENT procedures elsewhere in
this section.
If resistance value is incorrect, repair the connec-
tors or replace the wiring harness between ECM
connector and the MATS.
Replacement
Disconnect the connector of the MATS.
Screw MATS out and install the new one. Torque
to 18 N•m (159 lbf•in).
COOLANT TEMPERATURE
SENSOR (CTS)
1
R1503motr172A
1. Coolant temperature sensor (CTS)
Resistance Test
Disconnect the connector from the CTS and check
the resistance of the sensor itself.
The resistance should be between 2280
and
2740
at 20°C(68°F).
Otherwise, replace the CTS.
If resistance tests good, reconnect the CTS and
disconnect the ECM connector A on the ECM.
Using a multimeter, recheck resistance value be-
tween terminals 11 and 27.
If resistance value is correct, try a new ECM. Refer
to ECM REPLACEMENT procedures elsewhere in
this section.
If resistance value is incorrect, repair the connec-
tors or replace the wiring harness between ECM
connector and the CTS.
Replacement
Unlock expansion separator and temporarily move
away to gain access.
Remove the fuel rail cover.
Disconnect CTS connector and remove CTS.
Install the new CTS and torque to 18 N•m
(159 lbf•in).
Reinstall remaining removed parts.
MANIFOLD AIR PRESSURE
SENSOR (MAPS)
IMPORTANT: Never mix up MAPS of naturally-
aspirated and supercharged 4-TEC engines. Do-
ing so will automatically lead to a misfunction of
the ECM and will cause a bad engine calibration.
1
R1503motr173A
TYPICAL
1. Manifold air pressure sensor (MAPS)
smr2005-013 125
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Sea-doo 2005 4-Tec models Specifications

General

Displacement	1494 cc
Fuel Type	Unleaded gasoline
Engine Type	4-TEC
Cooling System	Closed-loop cooling
Seating Capacity	3
Width	48 inches (122 cm)
Fuel Capacity	15.9 US gallons