XirDecoder is a leading software platform in automotive chip tuning, offering cutting-edge solutions for vehicle optimization. With a vast database of over 130,000 files, it provides professional-grade tuning for Stage 1 to Stage 3 modifications, including DPF/EGR/DTC/Vmax/AdBlue off, Launch Control, and Hardcut limiters.
In this guide, we’ll demonstrate how to use XirDecoder ECU Tuning software to modify a BMW Bosch EDC17C50 ECU, covering Hardcut, EGR/DPF removal, and Stage 1 tuning. The same process applies to other programmers like Flex, Autotuner, FC200 and more.
Why Choose XirDecoder?
✅ Extensive Database – Supports over 130,000 ECU files.
✅ Multi-Function Tuning – Covers Hardcut, EGR/DPF/DTC/Vmax etc removal, Stage 1- Stage 3 tuning, and more.
✅ Compatibility – Works seamlessly with Foxflash, Flex, Autotuner, and other leading tools.
XirDecoder has 3 configurations:
Basic version- 2 files pey day
Standard version- 10 Files per day
Ultimate version– 30 files per day
If you do not renew your annual license after one year, your access to the system will be temporarily suspended. This is due to the ongoing costs of maintaining our online server infrastructure and the constant support provided by our engineering and AI teams. However, as soon as you choose to renew your license, your access will be fully restored.
DTC and HardCut operations are unlimited — they do not consume your daily file limit.
How to use XirDecoder ECU Tuning Software?
• Upload Your File: Use a master device to read your ECU’s file and load it into the system.
• AI Analysis: The platform’s AI scans your file and suggests the best tuning options.
• Select & Download: Upload your file and select the options you need. Within seconds, the AI will process your uploaded file based on your selections.
Additionally, if the uploaded file is not original, XirDecoder will detect non-original maps such as DPF or EGR and notify you. If desired, you can convert only the DPF and EGR maps back to their original state.
Example:
Step 1: Read the ECU
- Connect the ECU programmer to the EDC17C50 ECU (bench mode).
- Read and save the original ECU data.
Step 2: Perform Hardcut or DTC OFF Solution
If you need to do Hardcut function:
- Open XirDecoder software and select Hardcut function.
- Choose the vehicle brand and ECU model (EDC17C50).
- Upload the original file read in Step 1.
- Set the desired RPM limit (e.g., 4000 RPM for a bouncing limiter effect).
- Download and save the modified file.
Note: XirDecoder does not perform checksum correction—this must be handled by your hardware tool.
Step 3: Perform Other Modifications (EGR/DPF Off, Stage 1, etc.)
In XirDecoder, select the EDC17C50 ECU again.
Upload the original or Hardcut-modified file.
Choose desired functions:
- EGR OFF (disable exhaust gas recirculation)
- DPF OFF (remove diesel particulate filter restrictions)
- VMAX OFF (eliminate speed limiter)
- Stage 1 (optimize fuel and boost maps for increased power)
Click Download and save the final modified file.
Step 4: Write File
Write the modified file back to the ECU.
Verify that all changes are applied correctly.
