What is WinOLS 4.51 + DAMOS Files?

WinOLS 4.51 is a professional ECU remapping and tuning software developed by EVC Electronic. It’s used by tuning professionals worldwide to modify and optimize the firmware (maps) stored inside a vehicle's Engine Control Unit (ECU). The software allows users to adjust parameters like fuel injection, ignition timing, turbo boost, torque limiters, and more — improving performance, efficiency, or emissions.

DAMOS files (also known as A2L files) provide a detailed map structure of the ECU firmware. They help users understand what each map or parameter controls — acting like a guide or "blueprint" to make tuning much safer and more accurate.

How Does WinOLS Work?

1. Read ECU File: First, you extract (read) the ECU firmware using an ECU reading tool (explained below).

2. Open in WinOLS: Load the ECU file into WinOLS to view and edit maps.

3. Use DAMOS/A2L Files: If you have the right DAMOS file for the ECU, you can easily identify and label map data.

4. Edit Maps: Change values like fuel mixture, turbo boost, rev limits, etc.

5. Write Back to ECU: Once edited, the file is written back to the ECU using the same reading/writing tool.

Do I Need a Device or VCI?

Yes. WinOLS is just the software — to read from and write to the ECU, you need a compatible ECU tuning interface (VCI). Common devices include:

• KESSv2 / KESS3 (Alientech)

• KTAG (for Bench/Boot mode)

• Dimsport New Genius

• CMD Flash

• MPPS

• FGTech

• BitBox, PCMFlash, etc.

  
   Choose the VCI based on the ECU type and whether you want to work via OBD, Bench, or Boot mode.

💻 Computer and Operating System Requirements

• Operating System: Windows 10-pro (64-bit recommended)

• RAM:  (8 GB or more recommended)

• CPU:  (i5/i7 preferred for faster processing)

• Storage: 1–2 GB free space for software + additional space for project files

⚠️ Make sure your Windows is activated and antivirus/firewall does not block WinOLS.

 Summary: