CG FC200 supports VAG DQ200, VL381, DQ250, DL381 gearbox mileage correction on bench. Here we will show how to correct mileage for DQ200 (0AM) gearbox.
Select VAG Temic DQ200Dxx TC1766 gearbox in software. Check wiring diagram and connect gearbox with FC200.
Connect CAN-L, CAN-H, 2x12V and GND cables.
Identify gearbox.
The mileage data is stored in EXT Dflash.
So we reads EXT Dflash data only.
Read and save ext Dflash data.
Go back to FC200 main menu. Select Data Processing function- VW gearbox mileage correction- DQ200 TC1766.
Upload ext dflash data just saved.
Select mileage correction.
FC200 will detect current mileage. Enter the correct mileage.
Save new mileage data.
Go back to DQ200 menu.
Select Write EXT Dflash.
Upload new ext Dflash data.
Correct checksum for flash and write data successfully.
Disconnect gearbox and install it back to vehcle.
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Here’s a comparison of the Magic Motorsport Flex, Alientech KESS3, Autotuner, and DFOX ECU tuning tools based on their features, capabilities, and use cases. This breakdown aims to help you understand their strengths and weaknesses for ECU tuning and remapping tasks.
Pros:
Cons:
Pros:
Cons:
Pros:
Cons:
Pros:
Cons:
Ultimately, your choice depends on your target vehicles, budget, and whether you prioritize TCU tuning or long-term cost savings. For maximum coverage, many professionals pair tools (e.g., Flex + KESS3 or Autotuner) to handle all scenarios.
In the fast-evolving world of automotive tuning, choosing the right ECU (Engine Control Unit) tuning tool can make or break your experience — whether you’re a professional tuner or an enthusiast looking to optimize your vehicle’s performance. Two standout contenders in this space are the Alientech KESS3 and the Autotuner. Both tools have earned strong reputations, but they cater to slightly different needs and preferences. So, what sets them apart? Let’s break it down by comparing their features, performance, compatibility, and overall value.
Overview of the Tools
The Alientech KESS3 is the latest flagship product from Alientech, an Italian company with over three decades of experience in ECU remapping. Launched as a successor to the popular KESSv2 and K-TAG, the KESS3 is a versatile, all-in-one tool that combines OBD (On-Board Diagnostics), bench, and boot mode tuning capabilities. It’s designed for flexibility, power, and ease of use, appealing to both beginners and seasoned professionals.
The Autotuner, introduced in 2019, is a relative newcomer but has quickly gained traction among tuners worldwide. Developed by professional tuners, it’s marketed as a fast, intuitive, and powerful solution that also supports OBD, bench, and boot modes. Its rise in popularity stems partly from its ability to tackle newer vehicles, especially certain BMW and Mercedes models, via OBD — a feat that older tools initially struggled with.
Key Differences
Performance and Speed
Vehicle Compatibility
Tuning Modes and Flexibility
Cost and Licensing
Support and Reliability
Which Tool Is Right for You?
Choose the Autotuner if:
Final Thoughts
The Alientech KESS3 and Autotuner are both exceptional tools, but they shine in different arenas. The KESS3 is the veteran heavyweight — versatile, reliable, and backed by a massive support network. The Autotuner, meanwhile, is the agile upstart — fast, modern, and tailored to newer European cars. Ultimately, your choice depends on your specific tuning goals, budget, and the vehicles you work with most. For many professionals, the real answer might be owning both to cover all bases — but if you’re picking one, weigh your priorities carefully. In the dynamic world of ECU tuning, both tools prove that innovation and performance go hand in hand.
FormulaFlash ECU and TCU programmer released new software version 1.0.2.0 on March 19th, 2025.
When working with the CG FC200 software to solve the ‘Three Readiness Monitors Not Ready’ issue with the Bosch ME7.8.8 ST10F275 ECU in Great Wall vehicles, it’s essential to follow the correct procedures to ensure successful communication and data handling. Below is a detailed guide on how to proceed, including the reasoning behind certain steps.
Begin by opening the CG FC200 software and selecting the appropriate ECU model: Great Wall — Bosch ME7.8.8 ST10F275. Once selected, the software will display two versions of the wiring diagram. Choose the correct wiring diagram and proceed to connect the ECU accordingly.
When connecting the ECU, it is important to note that GPT-0 and GPT-1 lines do not need to be connected initially. This is because the software’s first step in the process is to unlock the ECU, which does not require these lines to be connected.
After connecting the ECU, click on the Three readiness monitors not ready function in the software. At this stage, the CG FC200 software will explicitly prompt you not to connect the GPT-1 and GPT-0 lines. This is because the initial step involves unlocking the ECU, which is performed without these connections.
Once the process begins, the software will successfully unlock the ECU. This step is crucial as it prepares the ECU for further operations, such as reading and writing data.
After the ECU is unlocked, the CG FC200 software will prompt you to connect the GPT-0 and GPT-1 lines. This is necessary for the next steps, which involve reading and writing the ECU’s flash memory.
With the GPT-0 and GPT-1 lines connected, the software will proceed to read the flash data from the ECU. Ensure that you save this data securely, as it may be needed for future reference or restoration.
Finally, the software will allow you to write new flash data to the ECU.
Three readiness monitors not ready problem was fixed.