Section 07
ENGINE MANAGEMENT (DI)
Subsection 03
(COMPONENT INSPECTION AND ADJUSTMENT)
SMR2003_024 _07_03A.FM
07-03-29
Using a multimeter, recheck resistance value be-
tween terminals 9 and 11.
If resistance value is correct, try a new MPEM. Re-
fer to MPEM REPLACEMENT procedures else-
where in this section.
If resistance value is incorrect, repair the wiring
harness/connectors between AMP connector and
the WTS.
Replacement
Remove air/fuel rail retaining screws.
Cut locking ties as necessary to allow lifting of
air/fuel rail in order to give access to the tempera-
ture sensor.
Disconnect WTS connector and remove WTS.
Apply Loctite 518 on WTS threads then install it.
Reinstall remaining removed parts.
MANIFOLD AIR PRESSURE
SENSOR (MAPS)
MAG SIDE THROTTLE BODY
1. Manifold air pressure sensor (MAPS)
NOTE:
This sensor is a dual function device. When
engine is started and it runs at idle speed, the sen-
sor takes the atmospheric pressure and stores it in
the MPEM. Thereafter, it takes the manifold air
pressure at operating RPMS.
Ensure sensor is correctly installed in elbow adap-
tor. Otherwise, the MAPS could generate a fault
code for an unexpected sensor range at idle when
it reads the atmospheric pressure. Ensure the cor-
rect connector is plugged and not mixed with the
MAG TPS. Remove sensor and check for oil or dirt
on its end and if problem persists, check throttle
plate condition/position and the wiring harness.
Perform the following tests.
Voltage Test
Check the MPEM voltage output to the manifold air
pressure sensor (MAPS).
Disconnect connector from MAPS sensor and
connect a voltmeter between terminal 1 and 3 and
also between terminal 1 and 2 of wiring harness.
If voltage test is good, replace the MAPS.
If voltage test is not good, check the continuity of
the MAPS circuit.
Resistance Test
Disconnect the AMP connector number 3 on the
MPEM.
Using a multimeter, check continuity of circuits 3-3,
3-6 and 3-7.
If wiring harness is good, try a new MPEM. Refer
to MPEM REPLACEMENT procedures elsewhere
in this section.
Otherwise, repair the wiring harness/connectors
between AMP connector and the MAPS.
Replacement
Remove the air intake silencer.
Remove the air duct.
Disconnect MAPS connector and remove the MPAS.
Install the new MAPS paying attention to index its
tab into the adaptor notch.
Reinstall remaining removed parts.
F12R0LB
1
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Summary of Contents for 2003 GTI LE RFI
Page 1: ...www SeaDooManuals net ...
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 ...
Page 779: ...www SeaDooManuals net ...