Family and variant scope
The saildot4k collection separates MSS54 and MSS54HP definitions. Its English labels are interpretations, and item descriptions preserve search/match information. MSS54/MSS54HP project guide. Choose MSS54HP for the larger-image hardware branch and its CSL context.
Inspected software example
| Source file | Header software ID | Declared editing region |
|---|---|---|
hw2801_V4_Complete.xdf | 211322002801J469 | 0x8000 bytes / 32 KiB |
This is an example from the pinned collection, not a support statement for every MSS54 release. MSS54 hw2801 Complete XDF.
The repository has Basic and Complete collections. Those names describe the supplied definition sets; they do not establish that every address or interpretation has been independently verified. Retain the complete software identity and confidence comments when using the matching file.
Read next
- MSS54/MSS54HP definition matching — filename selectors, exact IDs and visibility levels.
- hw2801 calibration reference — fuel, ignition and VANOS examples with file-relative offsets.
- Partial files and checksums — the source script’s extraction convention and integrity checks.
- Shared MSS map interpretation and validation records.
Keep an example from another release under this ECU branch with its own source definition and software ID. Use the HP child branch for HP-specific offsets and hardware observations.
Sources and evidence
Original Tuning Wiki reference notes. Definition data and source-code observations are identified as such; they do not establish runtime behaviour or a tested calibration. Validation suggestions and worked arithmetic are editorial guidance. Sources checked 10 November 2026.
MSS54/MSS54HP: saildot4k, the OpenSource MSS54 Project and credited contributors. Use the original files and retain their individual credits.
- MSS54/MSS54HP project guide — commit dd845dd34225.
- MSS54 hw2801 Complete XDF — commit dd845dd34225.