COVID19 UPDATE - We are keeping a close eye on the current situation and in line with latest government guidance we will remain operational until further guidance clarifies otherwise. If you have any questions, concerns or wish to postpone please do give us a call on 03336000669. We do still have our self-tuning options available: for those vehicles which are supported.


Dealer Banner - copy - copy

Dyno Developed Software & Unrivalled
Technical Support.


Super Car - copy

An ECU Remap for your exotic car
can significantly improve your driving


Diesel Tuning - copy

ECU Remapping your Turbo Diesel has
never been so easy. With improved power
and fuel economy one simple step away.


Truck Tuning - copy

Tuning your truck can improve your pulling
power and fuel economy. See how Celtic
Tuning can help you and your fleet.


Tractor Tuning - copy

Towing power is essential for any
farmer. Improve the power and
fuel economy of your tractor with
an ECU Remap.


previous arrow
previous arrow
next arrow
next arrow

The HDI Engine

HDI-RemapThe term HDi stands for “High Pressure Diesel Injection” and references the type of diesel injection method used. A HDi engine is a common rail engine which runs at pressures up to 2,000 bar (29,400 PSI) and can inject up to 7 times per cycle per cylinder. The fuel is delivered to all injectors by one fuel rail “Common rail” and is electronically controlled for upmost precision of injection timing. The modern common rail diesel engine can inject up to 7 times per cycle and has been the key to current refinement and economy standards.


A HDI Remap from Celtic Tuning can completely transform your HDI engine and revolutionise your own driving experience. The introduction of modular engines and the huge leap forward in electronic control has meant that a HDi remap can exploit the potential in your engine whilst staying within factory tolerances. Manufacturers use this same technique to vary the output of engines that they provide you with to save on costs and maximise profits.


2012> Peugeot Partner Van runs a Bosch EDC17C10 engine management system and comes in 75bhp and 90bhp formats. The 75bhp is simply a factory detuned version of the 90bhp and as such we can make the 75hp a factory spec 90bhp by altering the software alone. We can therefore take the 75bhp to the same maximum power output as the 90bhp with the same level of tolerances.

Benefits of a Celtic Tuning HDI Remap

tick A HDI Remap will increase Power
tick A HDI Remap will improve fuel economy
tick A HDI Remap will improve driver enjoyment
tick A Celtic Tuning HDI Remap will maintain reliability
tick A Celtic Tuning HDI Remap will ensure NO DPF problems
tick A HDI Remap will provide smoother power delivery
tick A HDI Remap will provide safer over taking ability

HDI Fuel Economy

Having your HDI Remap with Celtic Tuning will not only increase the power of your engine it will also provide you with great gains in fuel economy. The key to fuel economy is fuel pressure and torque delivery which is how modern diesel engines are achieving such impressive figures. A Celtic tuning HDI Remap optimises fuel pressure points and torque delivery to ensure that under general driving conditions you will see a nice improvement in fuel economy.

How to get a HDI Remap

If you are interested in remapping your HDI engine then please simply either get in contact or fill in our quote form and select the information for your vehicle. Once the quote request is received one of our highly trained technical staff will respond with all the information required on our performance software. To fill in the enquiry form please visit here.

Select Your Vehicle

or find your vehicle below

   Return to reg. search