Section 08
ENGINE MANAGEMENT (4-TEC)
Subsection 03
(COMPONENT INSPECTION AND ADJUSTMENT)
08-03-20
SMR2003_027 _08_03A.FM
IDLE BYPASS VALVE
An idle bypass valve with good resistance mea-
surement can still be faulty. It is also possible that
a mechanical failure occurs which is not detect-
able without measuring the air flow. Replacing the
idle bypass valve may be necessary as a test.
Resistance Test
Disconnect idle bypass valve from the wiring har-
ness.
Using a multimeter, check the resistance in both
windings.
Check the resistance between terminals A and D
and also between terminals C and B of the idle
bypass valve.
The resistance in each winding should be approx-
imately 50
Ω
at 23°C (73°F).
If the resistance of one or both windings is not
good, replace the idle bypass valve.
If resistance test of valve windings is good, check
continuity of circuits A-35, A-36, A-37, A-38.
Visual Inspection
Remove idle bypass valve from throttle body.
Check the piston and bypass channel for dirt/de-
posits which can cause a sticking piston.
CAUTION:
Do not try to operate the piston of
the idle bypass valve when it is dismounted.
Also do not move the piston by hand. The
screw drive is very sensitive and will be de-
stroyed.
Clean the parts and install the idle bypass valve on
the throttle body.
Proceed with the
Closed Throttle and Idle Actu-
ator Reset
. See above.
CRANKSHAFT POSITION
SENSOR (CPS)
TYPICAL
1. CPS connector
Ensure that information center works. Needles
will sweep, LED and LCD segments will turn on
when the safety lanyard is installed. Check for
RPM display at the information center while crank-
ing in engine drowned mode. Press and HOLD
throttle lever then press start/stop button. 800-
1000 RPM should display. Otherwise perform the
following tests.
NOTE:
Take into account that a CPS fault can be
triggered by bent or missing encoder wheel teeth.
First check fault codes then check the teeth con-
dition if necessary. See below.
Disconnect CPS wiring harness connector. Probe
terminals coming from CPS while cranking en-
gine. Voltage should be within 1-2 Vac. Otherwise,
inspect wiring and replace CPS if wiring is good.
Resistance Test
Disconnect the CPS connector from the wiring
harness and check the resistance of the sensor
itself.
The resistance should be between 190
Ω
and 290
Ω
.
Otherwise, replace the CPS.
1
R1503motr169A
www.SeaDooManuals.net
Summary of Contents for 2003 GTI LE RFI
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Page 767: ...NOTE www SeaDooManuals net ...
Page 768: ...NOTE www SeaDooManuals net ...
Page 769: ...F00Z0D 2003 GTI MODEL WARNING www SeaDooManuals net ...
Page 770: ...F00Z0C 2003 GTI LE MODEL WARNING www SeaDooManuals net ...
Page 771: ...F00Z0E 2003 GTI LE RFI MODEL WARNING www SeaDooManuals net ...
Page 772: ...F00Z0J 2003 RX DI MODEL WARNING www SeaDooManuals net ...
Page 773: ...F00Z0I 2003 GTX DI MODEL WARNING www SeaDooManuals net ...
Page 774: ...F00Z0K 2003 XP DI MODEL WARNING www SeaDooManuals net ...
Page 775: ...F00Z0F 2003 GTX 4 TEC MODEL WARNING www SeaDooManuals net ...
Page 776: ...F00Z0G 2003 GTX 4 TEC MODEL WITH AUXILIARY DESS MODULE WARNING www SeaDooManuals net ...
Page 777: ...F00Z0B 2003 GTX 4 TEC AND GTX 4 TEC SUPERCHARGED MODELS WARNING www SeaDooManuals net ...
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