John Deere 9770 ECU remapping
5 files available
About remapping
The John Deere 9770 is a combine harvester and accounts for 5 files in our catalogue, entirely the 9.0 litre diesel block. It is a high-capacity machine for large-scale grain harvesting.
Stage 1 accounts for all 5 files, with one EGR off alongside. The ECUs are L14/L15 and L15. In agriculture we always work to conservative criteria, because the engine spends many hours under constant load.
Model highlights
- ›5 Stage 1 files: a completely clean performance profile.
- ›Entirely the 9.0 litre diesel block.
- ›A high-capacity combine harvester for large-scale grain work.
- ›ECUs limited to L14/L15 and L15.
Fuel split
Engines
| 9.0d | Turbo-Diesel | 5 |
ECUs
ECU manufacturers
Available services
Remapping services
Stage 1
Optimising the original map with no hardware changes: more power and torque, full reliability.
EGR off
EGR valve management to reduce soot issues and improve response.
Why remap with Repromatronic
- ✓More power and torque with engine-safe tuning
- ✓Sharper throttle response and nicer driving
- ✓Potential fuel savings in normal driving
- ✓Files built from the original and 100% reversible
- ✓Made by technicians with thousands of projects behind them
Are you a driver?
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Log in as a professionalFrequently asked questions
What do you aim for on a combine harvester?
Sustained capacity under load during the harvest window, when the machine works long hours without margin for stoppages.
How does it differ from the S660 and S670?
They are different combine ranges from the same manufacturer. Each has its own entry in our catalogue.
Does it affect the machine's warranty?
It may affect the manufacturer's cover. We keep the original file so the work can be reversed if needed.