Holmer ECM tuning and reflashing
We program engine control modules for 8 Holmer applications, including terra dos, terra variant, beet harvester, lighttraxx and terra. The Holmer modules we see most often are the Detroit HDEP MCM2.1 D3/D4, Detroit HDEP MCM2.1 D1/D2, Volvo/TRW EMS2.2 V01, Bosch EDC7C32 and CPC4.
What we do for Holmer owners
Performance calibration for more usable power and better fuel use, stock software reloads and updates, and recovery of Holmer modules that failed during a flash. Every original file is backed up before we change anything.
How to order
Send the machine model, serial number and a photo of the ECM label. We confirm the exact module, quote it, and you ship the ECM to our Oklahoma shop from anywhere in the USA or overseas. See the full process.
Supported Holmer applications
| Machine type | Model and engine | hp | Year | ECM |
|---|---|---|---|---|
| Beet Harvester | T4.40 15.6L 460KW/626HP HDEP MCM2.1 | 617 | 2017 | Detroit HDEP MCM2.1 D3/D4 |
| Lighttraxx | D13 12.8L EMS2.2 V01 | 463 | 2014 | Volvo/TRW EMS2.2 V01 |
| Terra | 12.8L 6L EDC7C32 | 473 | Bosch EDC7C32 | |
| Terra Dos | 4-30 15.6L HDEP MCM2.1 | 617 | 2020 | Detroit HDEP MCM2.1 D1/D2 |
| Terra Dos | 5-30 15.6L HDEP MCM2.1 | 644 | Detroit HDEP MCM2.1 D1/D2 | |
| Terra Dos | 5.30 15.6L CPC4 | 644 | 2024 | CPC4 |
| Terra Variant | 435 10.7L HDEP MCM2.1 | 429 | 2025 | Detroit HDEP MCM2.1 D3/D4 |
| Terra Variant | 585 15.6L HDEP MCM2.1 | 577 | 2022 | Detroit HDEP MCM2.1 D3/D4 |
Don't see your model? Many modules we program aren't listed. Send us the details.
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