The engine's electronic control unit (ECU) is your car's main brain, and is connected to many others within the vehicle's electrical system. Each ECU reports back information to the main brain - certain parameters - required for the engine to make informed decisions, ensuring the correct and safe operation of the vehicle.
For example, petrol engines require, among other things, a perfect ratio of air to fuel to operate efficiently. The huge amount of data that is processed by the engine's ECU determines the decision on how much air and fuel is released and adjusts the ignition ('spark') timing accordingly, allowing for optimum performance.
HOW CAN I BENEFIT FROM REMAPPING?
A 'map' refers to the file (or 'calibration file') that is stored within the engine's ECU. This provides the engine with reference data while it's running. Large car manufacturers produce vehicles that are distributed to various continents, with different drivers, environments, rules and conditions. As a result, the cars are 'mapped' to a happy medium; a standardised design that takes into account all of these different factors. Inevitably, power is sacrificed in the process.
By reading the map in your car, and carrying out a professional assessment, I'm able to customise it and create a bespoke version, which compliments your exact driving style. This process not only improves performance, but extracts the full potential from each component of your engine, ensuring they work more efficiently together.
As a result, you'll achieve the same level of power without having to fully compress the throttle. Increased torque at lower engine revs could see up to 15% better fuel economy, sharper throttle response, better towing capabilities and a clear improvement on your over-taking manoeuvres, where you no longer have to change down a gear.
Vehicle manufacturers commonly use the same engine in various models, detuned and capable of more power. In most cases even using the same ECU, just with modified software. In this situation, the car's power on a lower specification vehicle can improve to above the standard figures of its more costly higher performance model.
Forced induction engines such as those fitted with turbo chargers or superchargers tend to see the most noticeable improvement in power, due to the increase of boost pressure. However, other vehicles can benefit a great deal from ironing out flat spots within the rev range, increasing torque and providing an all-round more responsive, lively and fuel-efficient drive.
HARD CUT LIMITERHard Cut Limiter programs the ECU to cut fuelling at a set RPM (normally 4300rpm) making the revs bounce off the limiter! This is normally available for cars from VAG Group but can be considered for other vehicles once I analyse relevant diagnostic data.
HOT START FIXIf a PD diesel engine starts easily and quickly when cold but struggles to start when hot, this is described as a Hot Start Problem. These diesel engines are started by an ECU and not by the driver. Pressing the accelerator pedal has no effect during a starting procedure. Starting is actually controlled by a ‘starting map’ in the ECU and is based on starter/engine speed (rpm) and injected fuel quantity. Generally, the ECU will not allow the start of fuel injection until the engine rpm is above a fixed map value. Such problems can occur from low battery charge, engine coolant temperature sensor faults or the starter motor itself. However, the problem may be the actual Hot Start Map within the ECU.
O2/LAMBDA OFF (DECAT)O2 off remaps are for those who have fitted either sportscats or decat pipes within their exhaust system and are subsequently having problems with the engine light being triggered due to emissions faults for error codes P0420 and P0430 (Cat efficiency). I can solve this problem by disabling these checks within the ECU map.
LAUNCH CONTROLLaunch control Software manages the amount of power to the wheels for optimum traction. From 2-4 MPH, the RPM is limited to 2500-2750rpm. Once the predetermined speed is reached the RPM Limiter will automatically move to normal RPM and from that point, maximum power is allowed.
MAF DELETE (MAF TO MAP SWITCH)MAF deactivation is not recommended as it is a very important sensor for fuel regulation, but sometimes (normally on high powered tuned cars with bigger turbo/injector modifications) the MAF reading hits its maximum value and touches the maximum allowed voltage read by the sensor making a fault code in the ECU and places the vehicle into a safe mode (limp mode). On vehicles equipped, this alternative involves the use of a manifold absolute pressure sensor (MAP). The MAP sensor measures pressure in an engine’s inlet manifold. When coupled with RPM data, and a table of volumetric efficiency over the operating range of the engine, the MAP sensor can be used by the engine management computer to calculate fuel requirements.
SPEED LIMITER REMOVAL Many vehicles are programmed with a top speed limiter. Speed limiter removal software allows the vehicle to reach its top speed. However, I am mindful of international road and highway laws and take the opportunity to stress this service is intended for off road use.
START/STOP DISABLEMany people do not like modern Start/Stop systems (which turns off the engine every time they stop), but it’s becoming increasingly common on new vehicles. Normally, there is a disable button, but this has to be reset every time the engine is restarted. With a Start/Stop Disabled in an ECU remap, the function is disabled permanently. This is intended for offroad use
SWIRL FLAP REMOVALIntake manifold flap failures are common on certain groups of cars and are expensive to replace and even more so if they have failed and damaged the engine internally. My software can be used as part of a flap removal operation without causing fault codes or engine management lights and risks.
ADBLUE REMOVALUsed in a process called selective catalytic reduction (SCR) to reduce emissions of nitrogen from the exhaust of diesel engines but it has been known to produce very high operating costs. If you wish to reduce or completely eliminate the consumption of AdBlue in your vehicle I can reprogram the ECU to allow this. This will not illuminate dashboard error lights but intending for off road use.
EGR DELETEExhaust gas recirculation (EGR) is a nitrogen oxide (NOx) emissions reduction technique used in petrol and diesel engines.EGR works by recirculating a portion of an engine’s exhaust gas back to the engine cylinders. This dilutes the O2 within the incoming air stream and provides gases, inert to combustion, to act as absorbents of combustion heat in order to reduce peak in-cylinder temperatures. NOx is produced in a narrow band of high cylinder temperatures and pressures. However, the valves can become clogged with carbon deposits, causing them to fail or stick, thereby causing error codes and the vehicle to not run correctly. Our solution is a simple and effective method of improving the efficiency. Disabling the EGR valve electronically and physically this results in lowered engine temperatures, improved throttle response and better economy. It can also increase engine life by reducing oil contamination and carbon deposits.
DPF DELETEDPF systems are designed to reduce emissions. They collect excess soot from diesel engines in a filter fitted in the exhaust system. This is then burnt off in a regeneration process when the required vehicle parameters are met. In theory, this system is good, but in practice is a very expensive problem for diesel vehicle owners. Most vehicles never meet the required parameters to regenerate and cause the filter to block causing the engine to go into limp mode thus, long term, causing possible component failure. A forced regeneration can be carried out, but when not successful, a replacement unit will be required normally at a very high price. The alternative is to remove the system. By removing the internals of the filter (maintaining its external appearance) or fitting with a delete pipe, the control unit can then be adjusted to remove this system electronically and make use of the improved exhaust flow for performance/economy enhancement. This is intended for off road use.
OTHER SERVICESOther services can be carried out on various cars but contact me for more information. Such as control unit cloning, OEM fitted 'sports' buttons to hide the performance map on a switch, fault code permanent removal etc but will be based on reading the vehicles file and confirming if it can be done. Note: Removal of the AdBlue system (or similar), EGR, DPF or any of the other services, in some cases, should only be carried out on vehicles for off-road use only. Using a vehicle on public roads with such a system disabled is at the owner/operators risk.