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Просмотр инструкции снегоходы Ski Doo SUMMIT 2005, страница 241
Section 05 ENGINE MANAGEMENT (POWER TEK)
Subsection 03 (COMPONENT INSPECTION, REPLACEMENT AND ADJUSTMENT)
Ensure pressure orifice is free of snow, ice and
dirt. Temporarily remove the orifice filter and
clean the area.
Check for fault codes in B.U.D.S.
If sensor does not work replace ECM.
KNOCK SENSOR (KS)
A33C53A
1
1. Knock sensor (KS)
Dynamic Test
Lift rear of vehicle off the ground and support it
with a wide-base mechanical stand.
Using the vehicle communication kit (VCK) with
the B.U.D.S. software, monitor the knock sensor
using the Faults section.
Start the engine and bring engine speed above
5000 RPM. If no fault code occurs, the knock sen-
sor is good.
NOTE: Ensure ignition coil cables are not close
to knock sensor harness. This might generate a
false fault code.
NOTE: Fault code P1326 might occurs but it is not
related with the knock sensor. If this code occurs,
refer to B.U.D.S. for proper action to take.
Otherwise, do the following.
Ensure sensor and head contact surfaces are
clean and mounting bolt and washer are correct
and properly torqued down.
Check the knock sensor circuit on wiring harness.
Disconnect the connector from knock sensor har-
ness.
Disconnect connector DA form the ECM and
check continuity of circuit as per following table.
A34E0LB
32
17
16
1
ECM CONNECTOR
CIRCUIT NUMBER
(ECM connector)
KS CONNECTOR
DA-2 PIN 1
DA-20 PIN 2
If test is not good, repair the connector or replace
the wiring harness between ECM connector and
knock sensor.
If test is good, try a new knock sensor. If problem
persists, try a new ECM.
Replacement
Unscrew and remove knock sensor from cylinder
head.
Clean contact surface, then install the new knock
sensor.
Torque screw to 29 N•m(21lbf•ft).
CAUTION: Improper torque might prevent sen-
sor to work properly and lead engine to severe
damage of internal com
ponents.
Replug connector.
224 mmr2005-107
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