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.


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Dyno Developed Software & Unrivalled
Technical Support.


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


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


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The JTD Engine

JTD-RemapThe term JTD is FIAT’S internal name for the “Turbo Diesel Common Rail Injection” engine and references the type of diesel injection method used. A common rail engine 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 JTD Remap from Celtic Tuning can completely transform your JTD engine and revolutionise your own driving experience. The introduction of modular engines and the huge leap forward in electronic control has meant that a JTD 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.


2008 Alfa Romeo GT 1.9 JTDm runs a Bosch EDC16C39 engine management system and comes in 150bhp and 170bhp formats. The only difference between these two variants is the software as the engines are 100% mechanically identical. So the 150bhp JTDm we can remap to either a Stage 1 factory 170bhp or the Stage 2 fast road.

Benefits of a Celtic Tuning JTD Remap

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

JTD Fuel Economy

Having your JTD 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 JTD 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 JTD Remap

If you are interested in remapping your JTD 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.

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