Holley ECU Recovery Service - Firmware Reflash
ECU not powering on after a failed firmware update?
If your Holley ECU stopped responding after a bad firmware flash, we can help bring it back to life.
Simply send us your ECU, and we’ll set it up on our dedicated test bench to reflash the correct firmware and restore basic functionality. This service is designed specifically for ECUs that no longer power on or communicate due to a failed or incomplete update.
How It Works:
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Ship your ECU to us along with your full contact information (name, phone number, email, and return shipping address). 
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We’ll attempt to reflash the appropriate firmware using our in-house equipment. 
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Once completed, you’ll receive a notification with the result, and you can then pay for the service. Shipping will be calculated at checkout. 
⚠️ Note: This service is strictly for firmware recovery. We do not perform hardware repairs or diagnose unrelated ECU issues.
Disclaimer:
While most ECUs can be recovered through a reflash, we cannot guarantee success in all cases, especially if the ECU has underlying hardware damage. This service is intended for ECUs that were functioning normally before a failed firmware update.
Holley ECU Testing
- Brand: M.F. Kustoms, L.L.C.
- Product Code: MFK-HLY-ECU-SERVICE
- Availability: Out Of Stock
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              $45.00


