Ski-Doo 2005 MACH Z, Shop Manual

Page: 169 / 343

Section 04 ENGINE MANAGEMENT (SDI)
Subsection 03 (COMPONENT INSPECTION, REPLACEMENT AND ADJUSTMENT)
KNOCK SENSOR (KS)
1
A32C9ZA
TYPICAL
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 RPM above
6000 RPM. If no fault code occurs, the knock
sensor is good.
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 “A” form the ECM and
check continuity of circuit as per following table.
CIRCUIT NUMBER
(ECM CONNECTOR “A”)
KS CONNECTOR
A-22 TERMINAL 1
A-8 TERMINAL 2
If test is not good, repair the connector or replace
the wiring harness between ECM connector and
knock sensor.
Replacement
Unscrew and remove knock sensor from cylinder
head.
Clean contact surface, apply Loctite 5910 (P/N 293
800 081) on both contact surfaces on the knock
sensor then install the new sensor.
CAUTION: Install screw and torque it within
10 minutes to prevent the sealant to dry be-
fore torquing. A dried sealant before torquing
would impair the knock sensor operation.
Torque screw to 20 N•m (15 lbf•ft).
CAUTION: Improper torque might prevent sen-
sor to work properly and lead engine to severe
damage of internal components.
Replug connector.
E-RAVE ACTUATOR
A35C46A
1
1. E-RAVE actuator
IMPORTANT: Prior to testing the E-RAVE actuator,
check for fault codes in B.U.D.S. using the vehicle
communication kit (VCK).
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