Weston eMapp

What is an engine MAP?

An engine map is a term used to define the numerical data stored in the memory of the ECU in every modern vehicle.
Put simply this data is stored in look up tables in the memory of the ECU and is used to determine its injector pulse width, ignition advance curve, boost control solenoid duty, diesel pump operation and many other output functions based on the operating conditions of the engine.

What does the ECU do with these MAPS?
For example when the ECU receives signals from its input sensors telling it, throttle position = fully open, engine rpm = 5000 manifold pressure = 1bar, air temperature = 35 degrees c, it will view the look up table for that particular set of data and find the data for the output sensors.

Why alter these MAPS?
Vehicle manufacturers have spent many years and many millions of pounds developing there highly advanced engine management systems for the modern vehicle, but whilst the hardware is technically very good, the engine control maps in the software leave a little to be desired in the regards to power, torque, drivability and efficiency. The reason for this is that every vehicle of a certain type will be programmed with the same maps.
These maps are designed to be a compromise for many different variables ranging from driving styles to climatic changes between the different countries in which the vehicles are sold.

Weston Performance eMapp

Here at Weston Performance we understand the importance of being able to tune these maps and with our partners have developed the EMAPP software, this software allows us to read tune and re-write the factory maps for most cars, bikes and commercial vehicles.

Manufacturer ECU remapping with Weston eMapp

Here at Weston performance we have the expertise and equipment to carry out ECU re-programming on 90% of modern road vehicles.
Complex EFI systems are present on every new vehicle produced be they cars bikes or larger commercial and agricultural vehicles. Both petrol and diesel applications are now largely computer controlled making the tuning process a much more precise, technical and complex task.
Using our Dyno Dynamics four wheel drive chassis dyno housed in a road environment simulation cell and in conjunction with our development partners we have been able to do many thousands of hours of testing and calibration on electronic fuel and ignition systems in order to produce the programs for customer vehicles.
Through our comprehensive testing work we have gained a vast amount of information enabling us to now tailor make each program to the customers vehicle and through the use of our highly advanced dynamometer facilities we can create programs that when installed on your vehicles ECU are right for you and your vehicle, whether it is performance or economy you are looking for we are sure we can find the right balance for your vehicle.

A full list of vehicles currently support by Weston eMapp is available here

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