This is an organized collection of one hundred Honda and Acura petrol ECU binary files named by model and 37805 calibration part number. The folders cover several engines and markets, with original-style, tuned and selected E2/EGR-labeled variants retained so a calibrator can compare related files and identify a potential software family.
These are reference binaries, not a universal ready-to-flash solution. The exact 37805 identifier, file size, ECU hardware, market and read method must match before a file is considered relevant to a vehicle.
These are reference binaries, not a universal ready-to-flash solution. The exact 37805 identifier, file size, ECU hardware, market and read method must match before a file is considered relevant to a vehicle.
What this resource is for#
Use the collection for research, stock-versus-modified comparison and recovery reference when the target ECU identity is already known. It can help locate closely related calibrations, study changes and cross-check a damaged read against a part-number family.Confirmed functions#
- Provide model-organized Honda/Acura binary references
- Retain part-number-based filenames for traceability
- Offer several file sizes corresponding to different memory layouts
- Support original-versus-tuned comparison in a hex or calibration editor
- Provide selected E2 and EGR-labeled variants for lawful analytical comparison
Supported controllers, files and vehicles#
- Accord folders with 2.0 and 2.4 litre branches
- Acura MDX and Acura RDX
- Civic, CR-V, Element and Fit
- Inspire, Legend, Pilot, Ridgeline, Spike and StepWagon
- File names include specific 37805 identifiers such as RBA, RBB, RL6, R6F, RZA, RZE, RJA and RJE families
- Coverage is file-specific and does not claim every year or powertrain under those model names
Package contents#
- One hundred BIN files
- Thirty Accord files and seventeen CR-V files
- Fifteen Legend and nineteen Ridgeline files
- Additional Acura, Civic, Element, Fit, Inspire, Pilot, Spike and StepWagon files
- No executable software or unchecked nested archive
System and interface requirements#
- Calibration editor or binary comparison tool
- Compatible ECU programmer for any later read/write work
- Exact ECU label, hardware/software identity and original full read
- At least enough storage for originals, working copies and comparison projects
- Professional understanding of Honda calibration structure and checksum requirements
Recommended workshop workflow#
- Record the ECU label and diagnostic software identifier
- Read the original twice and preserve immutable hashes
- Search the collection by exact 37805 part-number stem and file size
- Compare candidate and original before interpreting any modified region
- Use only a verified compatible base, correct checksums and write with stable power
Compatibility limits and responsible use#
- Model and engine size alone do not establish compatibility
- A similarly named calibration may target another market, transmission or emissions level
- E2/EGR labels describe filenames and are not a warranty of behavior or legality
- Never flash a reference file without a recoverable original and controller-specific validation
Troubleshooting#
- No exact part number: do not substitute the nearest-looking filename
- Different file size: verify whether one file is calibration-only and the other full flash
- Engine does not start after a test write: restore the original immediately
- Unexpected faults: re-check market, transmission, immobilizer and checksum assumptions
