All modern cars contain on-board computers that monitor or control things like emissions levels, engine temperature and even windscreen wipers. When things go wrong, these computers produce error codes which can only be read with vehicle diagnostics equipment. You may see a warning light on your dashboard, but these only give a small part of the full picture.
Car coding is a relatively new thing in the automotive world, and it implies software modifications to a vehicle to allow the use of functions not available in the car when it left the factory for different reasons, mainly local regulations. Codind does not imply changing the software! It only changes preprogramed options already existent in the software.
Furthermore, most vehicles have limitations and other restrictions. With the help of coding, a user can change the chimes on their car, set how many times its one-touch signal flickers for one touch, remember settings for Start/Stop systems, and more. Coders can also activate cornering headlights with fog lights, deactivate some buzzing sounds, and enable multiple functions of the comfort module.
Naturally, the things that can be done through coding depend on each car model, so don’t imagine it can do wonders for a vehicle that hasn’t got too many features in its configuration. This is where you need to find the "Cheat sheet" for your car and think what options do you want modified.
A vehicle remap replaces default software on the ECU (Engine Control Unit), overwriting it with new software which can be programmed to optimize the cars overall performance. This is known as vehicle remapping because the ECU is essentially a program that controls how the engine works. When your car is remapped, the tuned software is plugged into your cars serial port (or OBD port) which then overwrites the engine map with the new version to enhance engine performance. The ability to flash directly through the OBD has brought the tuning industry on leaps and bounds, with constant development on the engine now being much quicker via the flash process; it has enabled Celtic Tuning to develop some of the best software in the world.
There are many reasons to choose vehicle remapping. Firstly, you will notice that your engine responds better when the accelerator is pressed. The overall torque and power will be noticeably increased. Power delivery will be smoother making for a much safer driving experience, which in turn also makes it easier and safer to overtake. During normal driving you will notice that your MPG is better which not only decreases the cost of fuel that you will have to pay, but it also minimizes your carbon foot print. Throttle response will be improved and the rev range will be enhanced.