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Section 08
ENGINE MANAGEMENT (4-TEC)
Subsection 03
(COMPONENT INSPECTION AND ADJUSTMENT)
SMR2003_027 _08_03A.FM
08-03-19
If resistance values are incorrect, repair connector
or replace the wiring harness between EMS ECU
connector and the TPS. If wiring harness and con-
nector test good, replace TPS.
Replacement
Remove the throttle body as described above.
Loosen two screws retaining the TPS.
Remove TPS.
THROTTLE BODY
1. Throttle position sensor (TPS)
2. Screws
Apply Loctite 243 on screw threads, install the new
TPS.
Reinstall remaining removed parts.
Proceed with the
Closed Throttle and Idle Actu-
ator Reset
. See below.
Closed Throttle and Idle Actuator Reset
NOTE:
This operation performs a reset of the val-
ues in the EMS ECU.
This reset is very important. The setting of the TPS
will determine the basic parameters for all fuel
mapping and several EMS ECU calculations and
the setting of the idle bypass valve will determine
the basic parameters for the idle speed control of
the engine.
NOTE:
Reset must be done each time the throttle
position sensor (TPS) or the idle bypass valve is
loosened or removed or throttle body is replaced
or EMS ECU is replaced.
CAUTION:
An improperly set TPS or idle by-
pass valve may lead to poor engine perfor-
mance and emission compliance could possi-
bly be affected. In addition, improper idle
bypass valve reset may lead to poor engine
starting, improper idle (too low or way too
high) and engine stop on deceleration.
Use the vehicle communication kit (VCK) with the
B.U.D.S. software to perform this adjustment.
Ensure the throttle body plate stop lever rest
against its stopper. Open throttle approximately
one quarter then quickly release. Repeat 2 - 3 times
to settle throttle plate. If stopper does not rest
against its stop lever, perform throttle cable ad-
justment. Refer to THROTTLE BODY in AIR IN-
DUCTION SYSTEM above.
To properly reset valve, first install safety lanyard
then remove it and then wait 5 seconds. Repeat
this cycle 2-3 times.
Push the
Reset
button in the
Setting
section of
B.U.D.S.
NOTE:
No message will be displayed if operation
is good. If operation is wrong, an error message
will be displayed.
NOTE:
There is no idle speed adjustment to per-
form. The EMS ECU takes care of that. If TPS is
not within the allowed range while resetting the
Closed Throttle and Idle Actuator
, the EMS ECU
will generate a fault code and will not accept the
setting.
Start engine and make sure it operates normally
through its full engine RPM range. If fault codes ap-
pear, refer to SYSTEM FAULT CODES in DIAGNOS-
TIC PROCEDURES section for more information.
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1
R1503motr168A
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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 ...
Page 779: ...www SeaDooManuals net ...