Injector Trim Codes - Seidel Diesel...
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Injector Trim Codes
2 Diesel Injector Trim Codes Date
HEUI-HI315B® Operation
The injector utilizes a two-wire, multiple
waveform electronic control strategy to
energize the solenoid and control the
injection cycle.
Injection can be tailored to provide:
Ramp Rate Shape Injection
Square Rate Shape Injection
Multiple “Split” Injections (Pilot Injection)
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Delivery Tolerance (Trim Code)
Slight differences between
injectors have an effect on
fuel delivery.
Machining tolerances
Friction between parts
Magnetic forces
Unique Trim Codes for
each injector tailor their
performance to more closely
match the target injector.
Low
Limit
High
Limit
Target
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Why Trim Codes are Important
The trim code affects timing and
fuel delivery throughout the ECM
map.
To get the maximum benefit from
this type of injector, you MUST
upload the trim code file to the ECM
when you install the injector. Failure
to do so may result in poor engine
performance, rough idle, poor fuel
economy, increased emissions, and
could also result in engine damage.
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Trim Code Installation
A disc containing the unique trim code file is
supplied with each injector.
In order to enter the trim code into the ECM
either of the following is required:
Delphi Trim Code Upload Software with
NEXIQ USB Link
or
Caterpillar Electronic Technician (ET)
program with Communication Adapter 317-
7484
Failure to enter the correct trim code into
the ECM can affect engine performance and
emissions.
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Delphi Trim Code Upload Software DTC01 – MIN 16/02
Why Trim Codes Are Important.
Product Information.
Important Notes.
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Installation (Box Insert)
The box insert is in the process of being updated to highlight the importance of
uploading the trim code file to the engine ECM.
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Product Identification and Serial Number
Delphi Part Number
Serial Number
Confirmation Code
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www.DelphiTrimCode.com
Download “How To” Guide
Download ECM Serial
Number “GrabIt” Program
Download Trim Code
Upload Software – DTC01
Purchase License
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Diagnostic Cable
Adapter plugged into the
diagnostic port.
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Hardware Requirements
Diagnostic cable.
NEXIQ USB Link
Laptop Computer with
internet connection.
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Program Features
Swap (Exchange)
Load (Change)
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ECM Serial Number GrabIt Program
Sequence of operation
Connect diagnostic cable to
the vehicle
Connect to the NEXIQ
Connect to the laptop
Start the GrabIt software
Click on Grab It
Select the connection
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Delphi Trim Code File Loader Program
Sequence of operation
Connect diagnostic cable to
the vehicle
Connect to the NEXIQ
Connect to the laptop
Connect to the internet
Start the program
Select C7 or C15
Click on Connect
Select the connection
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Upload a Trim Code file
Sequence of operation
Select the Injector
Click on Load (Change)
Locate the Trim Code File
Click on Open
The Trim Code File is
uploaded to the ECM
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Swap Injectors
Sequence of operation
Select the injector
Click on Swap (Exchange)
Select the other injector
Click OK
The injectors are swapped.
Thank You!