ECU Remapping in Warwick

The engine is logged before the work and again afterwards, and we are happy to talk you through what those logs show on the day. The point of doing it is that the change becomes something you can see rather than something you have to believe. If anything in the second set of figures is not where it should be, it gets sorted before we leave.

The work is done on the road with data logging rather than on a dyno. A rolling road produces a headline figure under controlled conditions. Logging on real roads tells you how the engine behaves in the situations you actually drive in, under real load, on real surfaces, at real temperatures. For a car that is going to spend its life on roads rather than on rollers, that is the more useful information.

Because you would be writing something to your car that was never measured against your car. You would not know its current state, you would not know whether anybody had been in before, and you would have no baseline to compare against afterwards. Add the risk of interrupting a write with a tired battery and the saving looks a good deal smaller than it did.

Reading the calibration is the first step of any job, so yes, that part happens before any decision is made. It tells us what is genuinely on the vehicle now rather than what should be, which matters on a used car where nobody can be certain of its history. If what we find changes the advice, you will be told before anything is written.

Then we say so and stop. Adding torque to an engine with a leak, a tired turbo, a marginal clutch or a stored fault does not fix any of it, it just arrives at the consequence faster and at a worse moment. That conversation costs us the booking and saves you a larger bill, which is a trade we are content with.

Usually, and it is often useful. You know how the car behaved before better than anyone, so being able to point at the exact moment that annoys you tells us more than a general description would. If you would rather not, that is fine too, and nothing about the logging or the checks changes either way.

Drive it normally and pay attention. You are the one who will notice if something feels wrong, and the first week is when you would spot it. Beyond that, the ordinary things matter slightly more than they did: keep to the service schedule, do not ignore a new noise, and let the engine warm properly before asking a lot of it, which is good practice regardless.

A dealer with the right equipment can generally tell that the calibration is not the factory one, so it is not something to rely on hiding. That is exactly why the original file is stored and why putting the vehicle back to standard is quick. If the car is heading in for warranty work, returning it first is usually the sensible order.

That depends on your mileage rather than on how long you keep it. Somebody covering serious distance sees the benefit every week from the day it is done. Somebody doing very little will not have accumulated much of anything by the time the car goes. Either way the original file is kept, so returning it to standard before a sale is straightforward.

No. Describing the vehicle, the mileage and what is annoying you about how it drives is a phone call, and it frequently ends with a clear answer either way. If the useful outcome is that a map would not do much for how you use the car, you will be told that rather than sold something, and it will not have cost you anything to find out.