Dacia Sandero Stepway 1.5 dCi (EDC17C84 / SW 020195) – Stage 1 – +17 HP / +32 Nm

The Dacia Sandero Stepway with the 1.5 dCi engine is an economical and reliable model that is perfect for everyday use.
Although its small turbocharger does not allow for spectacular power gains, precise modification of the Bosch EDC17C84 ECU software significantly improves flexibility and dynamics in the usable rev range – especially when driving on the highway and on the highway.

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Stage 1 Modification Effect

Based on measurements from the Dynomax / Dynomet dynamometer and engine log analysis, we prepared an individual Stage 1 file that provided:

Although the power increase seems small, in practice the difference in driving is noticeable:

• 💨 the car responds faster to gas,

• ⚙️ accelerates better in 4th and 5th gear,

• 🚗 flexibility in the 1800–3000 rpm range has increased significantly,

• 🧭 Driving on the road has become smoother and calmer.

In everyday use, it is the mid-range rev range that provides the greatest improvement in driving comfort.

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Driver and modification process

The Dacia engine is equipped with the Bosch EDC17C84 (SW 020195) controller – a modern ECU with advanced control strategies for boost pressure, torque and combustion.

As part of the implementation, we performed:

1. 🔍 Diagnostics and analysis of engine logs (boost, doses, EGT, corrections),

2. 💻 Reading and writing ECU using the bench method,

3. ⚙️ ECU file processing – proprietary Stage 1 file based on real measurement data,

4. 📈 Final measurement on the Dynomax / Dynomet dynamometer, confirming the increase in power and torque.

The modification was performed within the safe factory limits , without the risk of overloading the turbocharger or injectors.

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Effects after modification – in practice

• 🚗 Faster throttle response in low and mid range,

• ⚙️ Better acceleration when overtaking,

• 🔧 Stable operation and no smoking,

• 💡 Greater smoothness of driving with a full load,

• ⛽ Possible fuel consumption reduction with a relaxed driving style.

This is an example of how, even in the case of a small engine, precise processing of the ECU file can significantly improve the comfort of use without losing reliability.

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For tuners and workshops – file service EDC17C84

We also offer chip tuning files and a full online file service for workshops and tuners working with 1.5 dCi engines.

• 💾 Ready Stage 1 / Stage 2 / ECO files for EDC17C84 controllers,

• ⚙️ Individual processing of ECU files based on the original,

• 🧠 Log analysis and map corrections on request ,

• ⏱️ Completion time: 30–40 minutes ,

• 📊 Files tested on Dynomax / Dynomet dynamometers.

Each file is prepared manually – without universal presets, while maintaining full operational safety of the engine and accessories.

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Summary

✅ Dacia Sandero Stepway 1.5 dCi
✅ ECU: Bosch EDC17C84
✅ SW: 020195
✅ Modification: Stage 1 – 107 HP / 252 Nm
✅ Gain: +17 HP / +32 Nm
✅ Completion time: approx. 40 minutes
✅ Measurement: Dynomax / Dynomet dynamometers
✅ Individual Stage 1 file based on professional chip tuning files

📩 Do you need a ready-made EDC17C84 (SW 020195) file or want to prepare tuning for your car / workshop client?
Contact us – we will prepare a professional chip tuning Stage 1 file or a customized ECU file as part of our online file service .