ECU Remapping in Upton

It does. This page covers Atterton, Fenny Drayton, Little Twycross, Orton on the Hill, Pinwall, Ratcliffe Culey, Sheepy Magna, Sheepy Parva, Shenton, Sibson, Twycross, Wellsborough and Witherley. Stoke Golding and Market Bosworth are a couple of miles off with pages of their own. Which page your postcode lands on makes no practical difference to us, so just ring and say where you are.

Yes. It is a little under fifteen miles from the workshop in Lutterworth, which is an ordinary journey for us rather than a special trip. The entire job happens at the vehicle, so a driveway, a yard or a gateway all work, provided the car can sit with the engine able to run and there is somewhere safe to work at it.

Usable torque arriving earlier and more predictably, from just above idle through the middle of the rev range. On the sort of roads round here that means the car pulls out of a corner without being asked twice, and you need fewer downshifts to keep up with the traffic. Peak power at the top of the rev band is the part you almost never use.

We will not put a percentage on it over the phone, and we would be a little suspicious of anybody who does. It depends on the engine, whether it is turbocharged, and the health of your specific car. Two vehicles with identical badges can be in very different states. Give us the make, model, year and engine and you will get a realistic expectation for that car.

It is the same job. Same equipment, same original file read and saved, same map written for that specific vehicle, same logging on the road before and afterwards. A car does not behave differently because of where it was parked when the file was written. The one genuine exception is an ECU that has to be read on a bench, which we check in advance.

The battery, more often than anything else. Writing to an ECU needs stable voltage for the whole process, and a battery that starts the car perfectly well can still sag partway through. If yours is old, or the vehicle has been standing for a few weeks, mention it when you book and we will come prepared rather than discovering it at your gate.

No. Removal is an MOT failure and makes the vehicle unlawful to use on the road, and we will not write software pretending a missing filter is still fitted. What we do is diagnose why it is loading, clean it properly and run a forced regeneration. EGR and AdBlue are the same: diagnosed and repaired, never blanked or emulated. If that is what you need, we are the wrong people.

Very likely part of it. Short cold journeys rarely let the exhaust get hot enough for a regeneration to finish, so soot accumulates faster than it clears. But it is still worth checking whether something upstream is producing more soot than it should, such as an injector or a sensor reading wrong. Describe the symptoms and mileage when you ring.

Usually, and it is one of the better cases. A loaded van spends its life in the mid range under sustained load, which is exactly the part of the rev range that gets improved, so it typically means fewer downshifts on a hill and less effort to hold a speed. Tell us what it carries and how far when you ring.

Yes. The original calibration is read off the ECU and stored before anything is written, so the vehicle goes back to exactly the state it was in when we arrived. That matters for a sale, a lease return or a dealer who wants the car standard before a warranty discussion. It is also a modification, so declare it to your insurer once it is done.