Toyota Prius ECU remapping

10 files available

About remapping

The Toyota Prius accounts for 10 files in our catalogue, dominated by the 1.8 Hybrid petrol. It is the car that made hybrid technology mainstream, and one of the most unusual bases we work on.

Stage 1 makes up 5 files, with 2 EGR off. The ECUs are Denso references identified by their software numbers. On a hybrid we work with particular care, because the combustion engine operates alongside the electric system.

Model highlights

  • 5 Stage 1 files on the 1.8 Hybrid petrol.
  • The car that made hybrid technology mainstream.
  • Careful work on a powertrain shared with an electric system.
  • ECUs limited to Denso references identified by software number.

Fuel split

Diesel: 0 (0%)Petrol: 9 (100%)

Engines

1.8 HybridPetrol8
1.5Turbo-Petrol1
1.8 EFI1

ECUs

DENSO 38966147620 1DENSO8966147110(SW:8966347062 1DENSO8966147120(SW8966347070 1DENSO8966147540(SW8966347491 1DENSOSOFTWARENUMBER:8966347820 1

Generations covered

W20 4W30 1W50 1

ECU manufacturers

Denso 10

Available services

Stage 1 · 5EGR off · 2

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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Frequently asked questions

Can a hybrid be remapped?

Yes, working on the combustion engine's ECU. We do it with particular care so the change does not disturb how the electric system interacts with it.

Does it affect the battery or the electric motor?

No. The work is done on the combustion engine's control unit and does not touch the electrical side of the powertrain.

How much does it gain?

Modest amounts: it is a naturally aspirated engine tuned for efficiency. We are honest about this rather than promising figures it cannot deliver.

Data comes from our project history. Exact availability is confirmed when you request the file.

REPROMATRONIC
Líderes en reprogramación de centralitas ECU y TCU en España
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