Checksum correction
Corrects the ECU file checksum so a modified file is accepted by the ECU.
What it is
File services cover the practical side of working with ECU files: correcting checksums, restoring the original, verification fixes and definition files. They keep your files clean and usable whether or not you also order a tune.
What you get
- Built and reviewed by experienced calibrators, not an automated one-click map
- Checksum-corrected and ready to flash, with revision support included
- Delivered fast, most orders the same day
- Your stock file kept on record so you can return to original at any time
Compatibility and delivery
Read your stock file with a mainstream tool such as Alientech, Autotuner or CMD and upload it to your dashboard. We prepare the file for your ECU, correct the checksum where supported and send it back ready to write. Not sure it fits your vehicle? Send the read and we will confirm before you order.