Section 04 FUEL SYSTEM
Subsection 02 (ELECTRONIC FUEL INJECTION (EFI))
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1. KS connector
Using a multimeter, check the resistance be-
tween both terminals on the knock sensor.
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The resistance should be as per the following
chart.
If resistance is not good, replace knock sensor.
If resistance is good, reconnect the knock sensor
connector and disconnect connector A from ECM.
Using a multimeter and the
ECM ADAPTER TOOL
(P/N 529 036 166)
, check circuit resistance as per
following table.
ECM ADAPTER
MEASUREMENT
PIN
RESISTANCE
@ 20°C (68°F)
A-C3
A-G2
5 M
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If wiring harness is good, check ECM. Refer to
ENGINE CONTROL MODULE (ECM)
in this sec-
tion.
Otherwise, repair the connector or replace the
wiring harness between ECM connector and
knock sensor.
KS Replacement
Open seat.
Remove rear ventilation box. Refer to
AIR INTAKE
SYSTEM
.
Remove deck extension. Refer to
BODY
.
Remove air intake silencer. Refer to
AIR INTAKE
SYSTEM
.
Remove the intake manifold. Refer to
INTAKE
MANIFOLD AND INTERCOOLER
in the
ENGINE
section.
Disconnect KS sensor connector.
Unscrew and remove knock sensor.
Clean contact surface, apply Loctite 243 in
threaded hole then install the new knock sen-
sor.
Torque screw to 23 N•m (17 lbf•ft).
NOTICE
Improper torque might prevent sen-
sor to work properly and lead engine to severe
damage of internal components.
Replug connector.
Reinstall remaining removed parts.
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251
Summary of Contents for GTX Limited iS 255 2009
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Page 554: ...2009 Sea Doo 4 TEC iTC iS Series RXT iS 255 GTX Limited iS 255 smr2009 045 001 ...
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