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Software Installation
Active Fuel Injector Tester User Guide
Step 1—Verify Requirements
Operating System Requirements
It is recommended that you only install the AFIT PC Application Software on computers with one
of the following Microsoft® operating systems (64-bit):
• Windows® 10 Professional
• Windows® 7 Professional
• Administrator level access to the Microsoft® Windows operating system.
Hardware Requirements
It is recommended that you only install the AFIT PC Application on computers with the following
hardware requirements:
• Minimum 100 MB free hard disk space
• Minimum 1 GB of RAM
• CD-ROM drive
• Available serial port or USB port or USB port (Requires using the USB to Serial Port
Adapter when connecting to the computer’s USB port)
• For SIDI Engines CH-47976-500 Adapter Kit (includes DMU and 2 cables) Note: Add
Duramax Engine coverage with CH-47976-505 (2 cables)
• For Duramax Diesel Engines CH-47976-510 Adapter Kit (includes DMU and 2 cables)
Note: Add SIDI Engine coverage with CH-47976-508 (2 cables)
Before You Begin
In order for the update to install properly, you must set the User Account Control (UAC) to the
lowest possible setting:
For computers running Microsoft 10 Professional:
1. Right click the Start button.
2. Click Control Panel.
3. Click System and Security.
