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Snowmobile Ski Doo REV SERIES (2006 year). Instruction - part 64

Section 06 ENGINE MANAGEMENT (SDI)
Subsection 03 (COMPONENT INSPECTION, REPLACEMENT AND ADJUSTMENT)

TEMPERATURE SENSOR TABLE

TEMPERATURE

RESISTANCE (OHMS)

CTS FOR

°C

°F

ATS

EGTS

GAUGE

ECM

149

36.82

526.3

158

32.19

447.5

167

28.24

382.3

176

320

24.86

328.1

185

21.95

282.8

194

19.45

244.8

203

17.28

212.8

100

212

180

275.9

15.4

185.6

105

221

162.4

110

230

142.7

115

239

125.9

120

248

111.5

125

257

99.02

130

266

88.26

135

275

78.93

140

284

70.81

145

293

63.71

150

302

312.7

57.49

200

392

349.0

250

482

384.6

300

572

419.7

350

662

454.2

400

752

488.1

450

842

521.4

500

932

554.1

600

1112

617.8

700

1292

679.2

800

1472

738.2

900

1652

794.9

1000

1832

849.2

The resistance value of a temperature sensor may
test good at a certain temperature but it might be
defective at other temperatures. If in doubt, try a
new sensor.

Also remember this validates the operation of the
sensor at room temperature. It does not validate
the over temperature functionality. To test it, the
sensor could be removed from the engine/air si-
lencer and heated with a heat gun while it is still
connected to the harness to see if the ECM will
detect the high temperature condition and gener-
ate a fault code.

ENGINE CONNECTOR PIN-OUTS

Connector Position

A33I09B

1. ECM connectors
2. Engine connector

ECM Connector

Use this diagram to locate the pin numbers on
the ECM connector of the wiring harness when
performing tests.

R1503motr176A

ECM CONNECTOR PIN-OUT (WIRING HARNESS SIDE)

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Section 06 ENGINE MANAGEMENT (SDI)

Subsection 03 (COMPONENT INSPECTION, REPLACEMENT AND ADJUSTMENT)

CAUTION: Probe on top of terminal only. Do
not try to probe inside terminal or to use a pa-
per clip to probe inside terminal, it will dam-
age the square-shaped terminal and this could
lead to improper function of the engine man-
agement system.

A32CCPA

PROBE ONLY ON THE PIN NOZZLE OF FEMALE CONNECTOR

CAUTION: Do not disconnect the ECM connec-
tor needlessly. They are not designed to be dis-
connected/reconnected repeatedly.

Engine Connector

Use this illustration to locate the pin numbers on
the engine connector of the wiring harness when
performing tests.

A32C9IA

ENGINE CONNECTOR PIN-OUT (WIRING HARNESS SIDE)

RELAY

Relay 2

Connect vehicle communication kit (VCK) and use
B.U.D.S. software.

Energize relay 2 from Activation tab.

Listen to or touch relay to feel it click.

If the relay does not work, disconnect the connec-
tor from the relay to test the input side.

Connect a voltmeter as indicated in the following
table.

TEST PROBE (+)

TEST PROBE (-)

RED/GRAY wire

Battery ground

Battery voltage (12 V) should be read.

If voltage reads 12 V, check continuity of OR-
ANGE/GREEN wire between relay connector
and pin B-16 of ECM connector. If faulty, repair
wire/connector. If wire/connectors test good, try
a new ECM.

If voltage does not read 12 V, check continuity
of wire on supply side of relay. If faulty, repair
wire/connector. If wire/connectors test good, re-
fer to ELECTRICAL SYSTEM to test output side or
relay.

mmr2005-081

253

Section 06 ENGINE MANAGEMENT (SDI)
Subsection 03 (COMPONENT INSPECTION, REPLACEMENT AND ADJUSTMENT)

AIR INDUCTION SYSTEM

THROTTLE BODY

A32C9JA

1. Throttle body
2. Throttle cable attachment
3. Throttle plate
4. TPS
5. E-RAVE solenoid

Mechanical Inspection

Check that the throttle plate moves freely and
smoothly when depressing throttle lever.

IMPORTANT: The throttle body is designed to be
tamper proof. Changing the zero position stop
screw or synchronization screw or modifying
them in any way will not increase performance
but may cause poor startability and erratic idling.

Before replacing any part, check the following as
these could be causing the fault. Perform the test
while the engine is not running.

– Throttle cable adjustment too tight. Not return-

ing fully to idle stop.

– Throttle body idle set screw is loose or worn.
– TPS is loose.
– Corroded or damaged wiring or connectors.
– Throttle body has been replaced and the Closed

Throttle reset has not been performed.

– ECM has been replaced and the Closed Throt-

tle reset has not been performed.

Electrical Inspection

Refer to THROTTLE POSITION SENSOR (TPS) in
ELECTRONIC MANAGEMENT below.

Replacement

Removal

To remove the throttle body from engine, proceed
as follows:

– Disconnect connectors from ATS (Air Tempera-

ture Sensor) and APS (Air Pressure Sensor).

– Disconnect air intake silencer from throttle

body. Move boot away.

– Install hose pinchers (P/N 295 000 076) on inlet

and outlet coolant hoses connected to throttle
body.

– Remove clamps and hoses for throttle body

heating from nipples.

– Disconnect connectors and hoses from E-RAVE

solenoid and TPS.

– Disconnect throttle cable.
– Unscrew retaining clamps of throttle body.

A32C9KA

1. Throttle body
2. Clamp

– Slightly pull throttle body out.

Installation

Installation of the new throttle body is the reverse
of the removal procedure. Pay attention to the
following details.

Refill engine coolant. If an important quantity of
coolant was spilled, bleed cooling system. Refer
to COOLING SYSTEM section.

For TPS and E-RAVE solenoid replacement proce-
dures, refer to the paragraph ELECTRONIC MAN-
AGEMENT in this section.

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Section 06 ENGINE MANAGEMENT (SDI)

Subsection 03 (COMPONENT INSPECTION, REPLACEMENT AND ADJUSTMENT)

Adjustment

Throttle Body Synchronization

CAUTION: It is not allowed to perform any
change on the synchronization screw.

Before installation, clean throttle plates and bores
with pulley flange cleaner (P/N 413 711 809).

NOTE: The throttle body is designed as a single
part for both cylinders. No synchronization is re-
quired as it has already been done at the factory.
However, proceed with throttle cable and closed
TPS adjustments as described below.

A32C9LA

THROTTLE BODY
1. Zero position stopper screw

CAUTION: It is not allowed to perform any
change on the zero position stopper screw.

The adjustment of the zero position stopper screw
is optimized by the throttle body manufacturer and
locked to prevent any modification.

CAUTION: Never attempt to adjust the zero po-
sition stopper screw (the capped one) or the
idle speed adjustment would be impaired. Be-
sides, no adjustment could be performed by
the dealer nor the factory to correct the zero po-
sition stopper screw. The throttle body would
need to be replaced.

A32C9TA

1. Idle speed screw
2. Zero position stopper screw

CAUTION: Do not alter or tamper with throttle
cable adjustment or routing. It may cause poor
startability and erratic idling.

The only screw that has to be adjusted is the idle
speed screw and it has to be adjusted only with
the closed throttle reset procedure or for high al-
titude application. This has to be done only if the
ECM or throttle body are replaced or if screw has
been tampered with by mistake. Refer to THROT-
TLE POSITION SENSOR (TPS) in ELECTRONIC
MANAGEMENT below.

Throttle Cable Adjustment

Handlebar and throttle cable must be at their nor-
mal position.

Adjust top nut to have a small cable free-play at
idle position.

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