Chip Tuning / ECU Remapping

Chip Tuning and Remapping

Remapping and "Chip tuning" as it is commonly known, is the art of modifying the standard ECU software, which is stored in the factory engine management system, otherwise known as the ECU. In order to increase the power-output of the engine, it is important to change the timing and amount of fueling, ignition timing, and turbo boost on turbocharged engines. By adjusting these parameters, the engine will have the upmost efficient combustion required for power and ecomony. An increase in power output of about 25-50% can be achieved, combined with a smoke-free vehicle and improved fuel economy of about 5-10%.

What is involved?

Normally the original software in the ECU is read first and stored as a file. This file is then modified and then programmed back into the ECU, overwriting the original software. Only the parts of the software essential for imrpving the performance of the engine are altered. Most of the time the software is read and programmed to and from the ECU via the OBDII diagnostics port, so there are no physical changes at all. Even if the ECU has to be removed from the car for access, it's normally a non-invasive process of reprogramming the engine computer, known as bench flashing. We do not alter any of the diagnostics systems, or the engine idle running, or any areas which would affect the MOT emissions. This makes our ECU upgrades 100% service compliant, and 100% UK emissions compliant.

How does remapping and chip tuning compare to a tuning box for a diesel engine?

Tuning boxes are add on devices that work by intercepting the signals between the ECU and the sensors and fuel system in the engine. Some tuning boxes intercept the sensor signals fooling the ECU into thinking that the engine is doing something different to what it actually is, thus making the ECU add more fuel. Other tuning boxes work by intercepting the output signals from the ECU and thus modifying the fuel control. Either way, a tuning box will only increase the amount of fuel that is added. Furthermore, the tuning box is always fighting the ECU. The ECU will to some extent try to compensate for the increase in fuel that is caused by the tuning box. This is especially true of the latest Euro IV engines with very tight emission controls. The end result is often inconsistent performance, and sometimes no improvement in performance at all.

A remap on the other hand works in harmony with the engine and emissions control. A "remap" is simply a rewrite of the software in the engine computer. Unlike the tuning box which only alters the amount of fuel, the ECU remap alters the turbo boost pressure, fuel injector duration, fuel timing, fuel pressure, and many other paramters, all of which can be optimised to give substantial increases in power and torque, while still remaining within emission control envelopes. Since no signals are intercepted, the ECU does not have to compensate for any abnormal readings and therefore the performance will be consistent. With the Euro IV engines, the ECU remap is the only way to improve performance because the ECU is too sensitive for a tuning box to successfully alter the behaviour of the fuel system without the ECU compensating for it.

Mobile TV Unlocking

We can now unlock the tv so it stays on while the car is in motion on all BMWs, newRange Rovers , Mini's and Rovers via the diagnostic port, no modules and no wiring. With our software we can just plug in and unlock your tv in seconds at a cost of only £100.


Most other Manufacturer systems, by a little reprogramming - Please call for details .

With the same coverage area as our Mileage Correction of Being mobile in this industry is essential. The car that needs recalibrating may also need the immobiliser re-coding, or the replacement cluster may need programming before the cluster is fitted to the vehicle - so for that reason we have 2 fully equipped mobile workshops, one in Lancashire and on in Richmond Upon Thames in London

We operate from 2 workshops. Primarily in Lancashire, covering all Lancaster, Preston, Garstang, Blackpool, Manchester, Bolton, Bury, Blackburn, Accrington, Bury, Bolton, Salford, Stockport, Nelson, Colne and everywhere in between, along with the neighbouring counties of Cumbria and North Yorkshire and West Yorkshire, which include; Leeds, Bradford, York, Otley, Ilkley Harrogate, Kendal, Carlisle, Barrow, Windermere and again, everywhere in those areas. The other office is based in central London and is convenient with all of inner London

Areas Covered - Mileage correction

Being mobile in this industry is essential. The car that needs recalibrating may also need the immobiliser re-coding, or the replacement cluster may need programming before the cluster is fitted to the vehicle - so for that reason we have 2 fully equipped mobile workshops, one in Lancashire and on in Richmond Upon Thames in London

We operate from 2 workshops. Primarily in Lancashire, covering all Lancaster, Preston, Garstang, Blackpool, Manchester, Bolton, Bury, Blackburn, Accrington, Bury, Bolton, Salford, Stockport, Nelson, Colne and everywhere in between, along with the neighbouring counties of Cumbria and North Yorkshire and West Yorkshire, which include; Leeds, Bradford, York, Otley, Ilkley Harrogate, Kendal, Carlisle, Barrow, Windermere and again, everywhere in those areas. The other office is based in central London and is convenient with all of inner London

Mileage correction Dash repairs and Diagnostics

Mileage correction - Reasons why.

Modern cars have electronic dashboards with digital odometer displays. The car manufacturers use these because they are cheaper to produce than a mechanical dashboard and easier to fit into the car as there is no mechanical speedometer cable. This new technology has its own problems though. Electrical pulses in the cars wiring can cause the dashboard data, which is stored internally on an EEPROM (Electrically Erasable Programmable Read Only Memory), to become corrupted.

This corruption could happen for a number of reasons:

. the vehicle battery was discharged and the vehicle had been jump started
. the dashboard may develop an electrical fault
. the dashboard may be damaged in a collision or through vandalism.

In these examples, the corruption of the information held in the EEPROM may mean that the mileage displayed on the speedo is now incorrect.
Mileage correction may also be necessary where a cluster replacement is required, either new or second hand. If it's a new one it will have zero miles on it. If it's a second hand one the mileage displayed is also likely to be different to the original thus requiring correction.