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ECU Remap and Chip Tuning Methods and Training

Alientech | Dimsport | Auto Tuner | CMD Flashtech | Magic Motorsport (MMS) | ECU Flashing Software & Tools

There are three ways of carrying out an ECU remap: via OBD (Onboard Diagnostics); Bench Programming using a specialist tool with ECU removed from the vehicle; and BOOT Mode - EPROM chip removal


This is now the most common form of carrying out an ECU remap. The OBD port is located within one metre of the driver’s seat and allows for reading and writing of the Engine Control Unit.

Using a tuning tool such as Kess3, the original ECU calibration is read out by the dealer before being uploaded to the Quantum Files Team. Once the file has been modified and sent back, it is then programmed back into the ECU. Some OBD remaps require certain procedures for the file to be successfully programmed (such as switching the ignition on/off or ensuring that the seatbelts are connected) and it is always wise to ensure that the vehicle has a healthy battery.


Some ECUs are not safe to modify via OBD, so will need to be removed from the vehicle and physically connected to a specialist programming tool such as Alientech’s Kess3. These conversions generally take a little longer than OBD tuning as some ECUs can be awkward to remove. However it is advisable to invest in a bench programmer as it means you will be able to cover most eventualities.


Having to actually remove the EPROM/EEPROM from an ECU in order to modify it is rare these days, but is still necessary on some older cars. It requires practice in carefully de-soldering the chip, reading and reprogramming it, and re-soldering to the PCB.


Quantum Tuning is your first source for car tuning service tools and remapping software, and we ship worldwide.

We sell only the best ECU Tuning Tools and ECU Remapping Software made by Alientech, and we sell all of these online. Please visit our Alientech sales site for your one-stop chip tuning shop for all your professional tuning needs.

Alientech products are of the highest quality and are known throughout the tuning and remapping industry worldwide for being an excellent and most reliable tuning brand.

Quantum Tuning’s innovative dealer plans are the first choice for file supply either as a full dealer or as a white label product. If you write your own files, then the range of Alientech products on offer also include master tools.

ECU Tuning Tools Become a Dealer Now


KESS3 has been developed to provide everyone, from the young engine enthusiast to the most specialized mechatronic technicians with a quick and simple interface to any engine control unit and automatic gearbox on the market.

Sensational performance, high operational flexibility and ease of use allow you to interface with engines and gearbox control units with a single tool.

KESS3 combines 3 operating modes in one tool

  • OBD – With the OBD mode, you can easily access all the ECU data through the diagnostic socket.
  • BENCH – A simple interface to the connector and you have complete access to the data of your ECU.
  • BOOT – This mode allows you to access all system data areas. Read, Write and Clone.
ECU Tuning Tools Become a Dealer Now


Our comprehensive one-to-one day’s training, worth £450, is an essential part of what we offer. Ask yourself the question: if a mysterious black box simply arrived in the post, would you be confident to go ahead and tune a vehicle?

Alientech Kess3 training is a day’s IMI certified course, Held at our Maidenhead offices, you can be confident about opening and programming ECU’s once you have completed the course.

ECU Tuning Tools Become a Dealer Now