All About ECU Remapping.
Let’s start at the beginning. What is the ECU.
For the uninitiated and those looking into car ECU tuning and remapping for the first time, the best place to start is to define what exactly we are doing and how we are doing it. In a nutshell, we are updating and modifying the car’s’ engine control unit. This is the ECU. The ECU is the computer (or computers!) that take information from all of the car’s sensors and driver inputs and defines the operating parameters for the engine.
Constantly analysing things like oxygen in exhaust gases, throttle inputs, ambient and engine temperatures, fuelling requirements and many more, the ECU is constantly delivering the optimum outputs by assessing these inputs and delivering information back to the car.
So what is ECU Remapping then?
ECU Remapping is taking the factory setting of the cars computer and tweaking parameters and tables to optimise for performance or economy, depending on the desired outputs. The reason ECU Remapping companies can make adjustments and deliver more power or improved economy is because when the factory completes the engine calibration, the need to consider vastness of operating environments and conditions and deliver performance with extreme tolerances built in.
Another reason there may be a large amount of untapped performance can also be simply a marketing consideration. It is not great for business if all models have the same performance, so manufacturers often ‘de-tune’ base models to lower levels, even if they have the same engine as other models in the range. Another common occurrence is when companies install an engine in a different product range and offer a detuned spec. There are many instances where there is plenty of untapped performance, that can be accessed well within the engineering tolerances built into the powertrain.
ECU remapping can modify fuel pressure and injection timing and cycles, ignition timing, absolute boost and boost delivery as well as throttle input maps and torque limiting maps. A modern engine can have thousands of parameters that are available to the knowledgeable tuner. Compared to modifications that are made downstream of the ECU, ECU Remapping allows us to take full control of all of the available tuning parameters to deliver a transformed driving experience.
What are the benefits of ECU Remapping then.
This one is pretty easy. ECU tuning car dramatically improve engine torque and power. Day to day, this means better throttle response, less perceptible turbo lag, a wider or more accessible torque curve and generally a more exciting car to live with. As someone with an interest in performance vehicle and tuning, this is what you are interested in. Removing unnecessary engine restrictions can drastically improve the performance of your car, often without needing to add additional modifications like uprated exhausts, intercoolers or injectors.
Should you desire, the other benefits of ECU Remapping can be improved fuel economy. Often a broader torque band can impact the ability of the engine to respond with less throttle inputs which can improve real world fuel consumption figures.
How do you do it?
ECU Remapping, as the name implies re-writes or adjusts the ‘maps’ available in your vehicles ECU. A map is industry terminology for a table of hexadecimal values, stored by and accessed in the car’s computer. As previously discussed, these tables are deeply interrelated and store all of the information regarding fuel, boost, injection timing and more.
When performing an ECU remap we typically access the cars ECU via what is car the On Board Diagnostics port which is commonly referred to as the OBD port. Since around 2002, a new standard, OBDII has made directly accessing the information stored on the car’s computer accessible with the right equipment and protocols.
Often in conjunction with former engineers from the car’s original manufacturer, a tuning company spends countless hours identifying which hexadecimal tables control which engine variables. Once identified, the files are modified and developed using a rolling road which allows engineers to test the effectiveness of the modified parameters.
By the time you have an ECU Remap installed in your car, it has been thoroughly tested and developed to deliver the engine’s optimum performance. This vast of research and development means that when you decide to have your car tuned, you can instantly install this optimised file which negates the need to tune your specific vehicle from scratch and go through this process of trial and error.
The benefits of an ECU Remap to the end user are pretty clear. For nearly any vehicle you can improve power, increase available torque, achieve improved throttle response and linear power delivery. In the real world this means more power accessible more of the time. This is makes an amazing difference, whether your on the road or at a track day, or even, off the beaten trail altogether.
From the current crop of Turbo Diesel 4WD’s to high performance supercars and everything in between ECU Remapping can deliver noticeable improvements and is easily the best value for money modification you can make.
What about Warranty?
We offer a 30 Day Total Satisfaction Guarantee. If you’re not over the moon with the results we can return your vehicle to standard at no cost. All Advanced Vehicle Remapping dealers have undergone extensive training and have a wealth of tuning and vehicle modification experience which means we can offer this guarantee with complete confidence.
Can I return my vehicle to standard?
Should you want to return to vehicle to it’s original state of tune for whatever reason, we always keep a secured version of your vehicle’s original file settings as a backup. Should you need to, we can replace the tuned file with this for you at no cost to you.
What Is The Cost?
Your ECU Remap from an Advanced Vehicle Remapping dealer will cost $1349 installed. This price includes our 30 Day 100% satisfaction guarantee as well as a complete vehicle health check before and after tuning.