Frequently Asked Questions

Is ECU remapping safe for my engine?

When carried out correctly on a healthy vehicle, ECU calibration is safe and designed to operate within the mechanical limits of the engine and drivetrain. At RubyTune, vehicles are assessed using professional diagnostic equipment before any calibration is installed.

Do you run diagnostics before tuning?

Yes. Every vehicle is checked using professional diagnostic equipment before any software changes are carried out. This helps ensure the engine and supporting systems are operating correctly and that the vehicle is suitable for calibration.

Can a remap improve fuel economy?

In some cases, yes. Where appropriate, improved torque delivery can reduce the need for excessive throttle input and frequent gear changes, which may help fuel economy. Actual results will always depend on the vehicle, its condition and how it is driven.

Will remapping damage my engine or gearbox?

A properly calibrated vehicle operating within safe limits should not suffer damage purely because of the software. However, any existing weakness in the engine, turbocharger, clutch, gearbox or emissions system may still show up over time. This is why diagnostics and honest advice are so important before calibration.

Will a dealer remove my remap?

In some cases, yes. A main dealer software update can overwrite the ECU calibration. If this happens, the vehicle may return to its previous software version and the calibration may need to be reinstalled.

Should I tell my insurance company if my vehicle has been remapped?

Yes. Any change to the vehicle’s performance or software should be declared to your insurer. Failing to do so could affect cover in the event of a claim.

Do all tuners achieve the same results?

No. Power and torque figures can vary depending on the quality of the calibration, the condition of the vehicle and how the results are measured. We prefer realistic, usable improvements over exaggerated claims.

Can you remap working vans and commercial vehicles?

Yes. Many of the vehicles we work on are commercial vehicles used for towing, carrying tools or covering high mileage. In these cases, the focus is usually on improved low-RPM torque, drivability and real-world usability rather than headline power figures.

Can a remap be removed?

Yes. In most cases the ECU can be returned to standard software if required, depending on the platform and its current condition.

Do you only offer performance tuning?

No. RubyTune also provides vehicle diagnostics, ECU programming and software analysis for a wide range of modern vehicles. In many cases, identifying faults or confirming the condition of the vehicle is just as important as the calibration itself.

Do you work with factory software and control units?

Yes. Modern vehicles rely on complex electronic control units, and our work involves professional interaction with those systems using dedicated diagnostic and programming equipment. Where required, manufacturer repair and maintenance information may be accessed to support legitimate diagnostic and programming procedures.

What vehicles do you commonly work on?

We regularly work on cars, vans and commercial vehicles, with a strong focus on platforms such as Ford Transit, Transit Custom, VW Caddy, Transporter, Crafter, Peugeot Boxer, Citroën Relay, Fiat Ducato and similar working vehicles.