Remapping Vehicle Engines

Engine Remapping in Detail

When people talk about Remapping what do they mean?

Well to answer this question we need to advise you on how most vehicles on the road today work. As from 1994/5 almost all vehicles were fitted with an engine Control System for the control of the vehicles major functions.

The Engine Management System (ECU)?

The vehicle Control Management system is referred to as the ECU (Electronic Control Unit) and this ECU controls all of the engines major functions including vehicle power, fuel mixture, air flow, air pressure etc. The ECU system manages these major functions by referencing a matrix of values that control these important engine functions, this information is referred to as an ECU map.

Making changes to the factory settings

The values inside the ECU map are set at the factory for what is believed to be the optimum settings for this vehicle but in most cases these optimum values were set in areas of the world different to where the vehicle will be driven. The main issue with this is that these values were set in different conditions including height above sea level, road conditions, temperature of the location where the vehicle will be used

All of this means that when the vehicle arrives in the local geography it is not always tuned for optimum performance and economy for that particular country.

Changing the map settings inside the ECU allow important functions of the engine management system to be set to a desired optimum configuration.

When you Change the map settings in The Engine What's happens to the overall engine function and economy?

In most cases improvements of the performance and the economy of the vehicle can be remarkably improved by changing some of these values within the ECU map.

Care should always be taken though to ensure that as these changes are made the engine is checked to make sure that none of the motor vehicles sensors are flagging issues in other elements of the vehicle engine and that the break horse power and economy of the vehicle are all logged before the start of the remapping process.

On top of the fact that we can improve the engine torque, typically we also improve the handling of the vehicle at lower rev ranges such as engine flat spots. This can also cure engine hesitation problems delivering more torque making the engine more responsive and a more enjoyable drive.

It is essential in my opinion that you inspect all of the vehicles sensors to ensure that none of them are triggering any sort of fault, before proceeding.

Its is also a good idea to check the BPH of the vehicle before downloading and saving the original ECU map from the vehicle.

There are different processes for remapping an engine at this point, often a new version of the map that will make subtle changes to the vehicles map values incorporating increases in the BPH and the fuel economy, will be installed.

Remapping Vehicle Engines

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What is Remapping?

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