Perkins 1204-E44TA - Injector Code - Calibrate

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Injector Code - Calibrate
Injector codes are codes that are 30 hexadecimal
characters in length that are supplied with each
injector. The code is on a plate on the top of the
injector and a card is also included in the packaging
for the injector. The code is used by the Electronic
Control Module (ECM) to balance the performance of
the injectors.
Illustration 190 g02854936
Label with the injector code
Illustration 191 g02132457
Sequence for recording the injector code
The electronic service tool is used to load the injector
codes into the ECM.
The injector codes must be loaded into the ECM if
any of the following conditions occur:
• An electronic unit injector is replaced.
• The ECM is replaced.
• A -2 diagnostic code is active for one or more of
the injectors
• Electronic unit injectors are exchanged between
cylinders.
If the ECM is replaced, the injector codes are
normally transferred to the new ECM as part of the
“Copy Configuration” procedure. If the “Copy
Configuration” procedure fails, the injector codes
must be loaded manually.
Installing Injector Codes
Note: The injector code is on the electronic unit
injector.
1. Record the injector code for each electronic unit
injector.
2. Connect the electronic service tool to the
diagnostic connector. Refer to Troubleshooting,
“Electronic Service Tools”.
3. Turn the keyswitch to the ON position.
4. Select the following menu options on the electronic
service tool:
• Service
• Calibrations
• Injector Codes Calibration
5. Select the appropriate cylinder.
6. Click the “Change” button.
7. Input the applicable injector code that was
recorded in Test Step 1.
8. Click the “OK” button.
The injector code is loaded into the ECM.
9. Repeat the procedure for each cylinder, as
required.
Exchanging Electronic Unit Injectors
Exchanging electronic unit injectors can help
determine if a combustion problem is in the electronic
unit injector or in the cylinder. If two electronic unit
injectors that are currently installed in the engine are
exchanged between cylinders, the injector codes
must also be exchanged. Press the “Exchange”
button at the bottom of the “Injector Trim Calibration”
screen on the electronic service tool. Select the two
electronic unit injectors that will be exchanged and
press the “OK” button.
UENR4469-36 517
Service
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