Section 05 ENGINE MANAGEMENT
Subsection 02 (COMPONENT INSPECTION AND ADJUSTMENT)
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FUEL RAIL ASS'Y
1. Fuel injector
2. Injector clip
3. O-ring
Then remove the injector clip. Now the fuel injec-
tor can be easily pulled out of the fuel rail.
Installation
For the installation, reverse the removal proce-
dure. Paying attention to the following details.
If you reinstall a used injector, carefully inspect
O-ring condition before reinstalling fuel injector.
ReplaceO-ringwithanewoneifdamaged. In-
sert the fuel injector in place with your hand.
NOTE: A thin film of engine oil should be applied
to O-rings to ease insertion in rail.
Apply Loctite 243 on rail retaining screws then
torque to 10 N•m(89lbf•in).
WARNING
Perform a fuel pressure test and ensure that
there is no leak. Refer to FUEL PUMP above.
Run engine and check for leaks.
ELECTRONIC MANAGEMENT
ECM ECU AND VCM
REPLACEMENT
General
Prior to replacing a suspected ECM ECU or
VCM, ensure that all the recommendatio
ns in the
general introduction of this sectio
n have been
followed.
IMPORTANT: When the ECM ECU is replaced,
the Closed Throttle and Idle Actuator must be re-
programmed/reset. Refer to its specific section
for adjustment.
To allow transferring the previous recorded infor-
mation from the old ECM ECU or VCM to the new
one, use the vehicle communication kit (VCK) with
the B.U.D.S. software. Use Replace ECM or VCM
in the Module menu. Follows instructions in its
help system.
NOTE: If the old ECM ECU or VCM is working, it
must be read inside B.U.D.S. prior to removing it
from the vehicle to carry vehicle information and
history to the new ECM ECU or VCM . Otherwise,
perform the operations described in If the previous
VCM was not read with B.U.D.S. below.
ECM ECU Replacement
Disconnect battery cables.
WARNING
Battery BLACK negative cable must always be
disconnected first and connected last.
Disconnect both ECM ECU connectors from ECM
ECU.
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TYPICAL
1. ECM ECU
2. Retaining screws
Unscrew all retaining screws and remove the en-
gine ECM ECU from intake manifold.
Install the new ECM ECU to the engine.
Te m pla te 191
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