Autotuner Filesize Converter — ECU Binary Size Utility 1.0.0.0

Autotuner Filesize Converter is a small offline Windows utility for expanding an ECU read to one of several controller-specific target sizes. It is useful when a programming tool has saved only the populated region of flash but a comparison, calibration or downstream tool expects the physical memory size.

Supported vehicles, ECUs and files​#

The visible presets cover MEVD17 and EDC17 outputs at 4 MB, MDG1 outputs at 8 MB and a Continental 4 MB option. These are size presets, not a vehicle compatibility database. The operator must already know the ECU family, original read type and required final layout before converting.

• Binary files from supported Bosch MEVD17 and EDC17 workflows requiring the displayed 4 MB target.
• Supported Bosch MDG1 workflows requiring the displayed 8 MB target.
• Supported Continental reads requiring the displayed 4 MB target.
• Files whose missing region can legitimately be reconstructed by the utility’s preset; partial or corrupt reads are not automatically repaired.

Functions​#

• Open one ECU binary from the desktop interface.
• Choose the controller-family target rather than padding or trimming bytes manually.
• Save beside the input or select another working location.
• Produce a consistently sized file for comparison, map editing or a compatible programming workflow.

System and hardware requirements​#

• A Windows PC; the package is a single portable x86 executable with no installer.
• A verified original read and reliable ECU identification from the programming tool or module label.
• Enough free disk space for both the original and expanded file.
• A hex/hash comparison tool and any checksum solution required by the next stage.

Recommended workflow​#

1. Record the source file size and SHA-256 before conversion.
2. Confirm the ECU family and expected physical size from trusted tool documentation.
3. Convert a copy, then verify the exact output byte count and inspect where data was added.
4. Reopen the result in the intended calibration or flashing tool and reject it if identification or checksums are inconsistent.

Package contents​#

The archive contains only the unsigned converter executable. It was statically inspected and never launched during preparation. It includes no ECU definitions, driver, flasher or user manual.

Important limits​#

A correct byte count does not prove a valid flash. Do not use the converter to disguise a failed read, interchange full/virtual/bench formats or overwrite an original file; controller identity and layout remain the operator’s responsibility.