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Pegasus Performance - Mobile Remapping Tuning Service

We have over 16 years performance tuning experience, we use the very latest remapping equipment and offer a convenient mobile remapping service at a competitive price.

ECU programming will not only improve the engines power and torque figures, it will also sharpen the throttle response and widen the power-band.

To get the perfect set off we are able to reprogram the system to hold at a certain RPM limit when stationary. When set at the correct RPM limit, the car will have a perfect balance of power and grip for a quick set off with minimal amount of wheel spin.

On-board diagnostics, or OBD, is an automotive term referring to a vehicle’s self-diagnostic and reporting capability. OBD systems give the vehicle owner or a repair technician access to state of health information for various vehicle sub-systems.

ECU Remapping

WHAT IS ECU (ENGINE CONTROL UNIT)?

The engine in all modern vehicles is controlled electronically by an ECU, which is constantly processing formation received from a multitude of sensors. The engine’s fuelling, ignition timing, boost if applicable, torque values, etc, are all calibrated within the ECU code based on the conditions in which the vehicle is being used, its altitude, the quality of the fuel in its tank, and so on. Together with the sensor information the relevant tables, or ‘maps’, are used to keep the engine running at optimal performance – whether it is being asked to deliver high or low output.

ECUs are increasingly complex and every new generation that ECU manufacturers (typically BOSCH, Siemens, Delphi, Magnetti Marelli, Denso and others) produce requires a deeper understanding of the strategy that has been employed.

WHAT IS ECU REMAPPING/PROGRAMMING?

When a manufacturer develops a new car they have to take into consideration all of the conditions it may be subjected to in all of the regions in which they intend to sell this model. This means instead of just optimising the ECU’s program or ‘map’ to deliver the best performance or the most fuel efficiency they have to make compromises to the map to take into account these potential differing operating conditions. These could include sub-standard fuels, extremes in temperature and altitude, differing emission laws and even the possibility that vehicle may not be serviced on a regular basis and in accordance with the manufacturers recommended instructions.

ECU remapping is taking a read from the ECU’s processing chip of the vehicles standard compromised map and adjusting various parameters within the map such as fuel pressure, boost pressure (on turbocharged applications) ignition advance and throttle pedal control amongst others to release the true performance from the engine. It is a completely safe process as it is just giving the engine the performance it should have had in the first place before all the compromises were applied to the original programming. Every engine will have its own unique map and by adjusting this we can fine tune the characteristics of the engine; unleashing more power and in many cases reduce fuel consumption too.

BENEFITS OF ECU REMAPPING/PROGRAMMING

ECU programming will not only improve the engines power and torque figures, it will also sharpen the throttle response and widen the power-band. This will make the power delivery a lot more linear, which in turn will make the vehicle feel livelier to drive and the engine more flexible. Frequently, the vehicle’s power output is restricted by the manufacturer for no other reason than to ensure that it fits into a class to suit fleet buyers. As a driving enthusiast, you do not need or want such restrictions placed upon your vehicle’s ECU, so with a conversion you can benefit from the hidden power and torque locked away within your engine management system.

The other main benefit of remapping will be a reduction in fuel consumption. With the extra torque – especially at the bottom of the rev range – you will see a fuel saving as it will require less throttle input to maintain motorway speeds; you can drive in a higher gear at a slower speed; and the additional power is especially useful when fully laden, towing, or on gradients.

ECU REMAPPING BENEFITS FOR TURBOCHARGED DIESEL ENGINES

Many see the modern crop of Turbocharged diesels as the future of road car’s chip tuning. Even in North America, a nation famed for its love of the petrol engine is starting to come around to the benefits of turbo diesel passenger cars in particular. These engines offer fantastic potential for reliable low cost tuning without removing any of the appeal of buying and running a turbo diesel powered vehicle, such as economy, reliability and longevity.

After your ECU upgrade to your turbocharged diesel engine, you will enjoy:

  • Increased horsepower
  • Increased torque
  • Better throttle response
  • Smoother power delivery
  • Improved fuel economy
  • Safer overtaking
ECU REMAPPING BENEFITS FOR TURBOCHARGED PETROL ENGINES

Turbocharged petrol engines have always been regarded as the sports flagship engine for good reason. They boast far higher power & torque figures than a non-turbocharged power-plant with similar displacement and are usually fitted to the manufacturer’s flagship models. They are also ideal candidates for programming as the ECU also controls the wastegate (turbo boost pressure control).

After your ECU upgrade to your turbocharged petrol engine, you will enjoy:

  • Increased horsepower
  • Increased torque
  • Better throttle response
  • Smoother power delivery
  • Safer overtaking
ECU REMAPPING BENEFITS FOR NON-TURBOCHARGED PETROL ENGINES

Normally aspirated petrol engines aren’t the easiest to tune, can still benefit from a 10-15% power increase with added torque by careful reprogramming of various engine parameters. Fuel and ignition mapping can be fine-tuned, and on some engines the camshaft timing can also be subtly improved to gain power.

In many cases, after-market hardware such as free-flowing exhausts, high-flow air filters, and reprofiled camshafts can only be fully exploited to gain power once the ECU calibration has been altered to suit. The use of high-octane fuel can also be exploited by mapping for more ignition advance.

DSG Tuning

HIGHER TORQUE LIMIT

Most Automatic Gearboxes have a set torque limit within the software, meaning tuned cars will be limited to this figure even if the engine is wanting to produce more. Without Gearbox software, the only way to get around this is to ‘trick’ the Gearbox control unit to believe the torque is less. This works OK on relatively stock vehicles, but can cause issues with higher power builds where you need as much control as possible. We can increase this torque limit to more realistic levels or in some cases remove it completely.

FORCED UP SHIFT

Even in manual mode, most gearboxes will automatically change up at a set RPM. This doesn’t always suit everyone’s driving style and can be quite annoying. We can set this to a higher RPM or disable it completely. Ideal for track or fast road use.

LAUNCH CONTROL

To get the perfect set off we are able to reprogram the system to hold at a certain RPM limit when stationary. When set at the correct RPM limit, the car will have a perfect balance of power and grip for a quick set off with minimal amount of wheel spin.

OBD and Bench Remapping

WHAT IS OBD?

On-board diagnostics, or OBD, is an automotive term referring to a vehicle’s self-diagnostic and reporting capability. OBD systems give the vehicle owner or a repair technician access to state of health information for various vehicle sub-systems. The amount of diagnostic information available via OBD has varied widely since the introduction in the early 1980s of on-board vehicle computers, which made OBD possible. Early instances of OBD would simply illuminate a malfunction indicator light, or MIL, if a problem was detected—but would not provide any information as to the nature of the problem. Modern OBD implementations use a standardized digital communications port to provide real-time data in addition to a standardized series of diagnostic trouble codes, or DTCs, which allow one to rapidly identify and remedy malfunctions within the vehicle.

The OBD system provides owners with an early warning of malfunctions by way of a dashboard “Check Engine” light (also known as a Malfunction Indicator Light or MIL, for short). By giving vehicle owners this early warning, OBD protects not only the environment but also consumers, identifying minor problems before they become major repair bills.

WHAT IS OBD TUNING?

In the engine tuning industry, three phrases are often used interchangeably. These are: ‘OBD Tuning’, ‘Chip Tuning‘ and ‘ECU Remapping’. OBD stands for On Board Diagnostic. To make sense of this the word port is important because without the port, on board diagnostics would not actually exist; just as it didn’t exist in the 1980’s. So any ‘OBD port tuning’ or ‘obd port remap’ is just engine tuning or engine remapping completed via the use of the car’s obd port.

HOW DO I KNOW THE OBD SYSTEM IS WORKING CORRECTLY?

When you turn on the ignition, the “Service Engine Soon” or “Check Engine” light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If so, you’ll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the environment!

WHAT IS THE OBD PORT?

The OBD port (On-Board Diagnostics) is basically a plug in the vehicle which can be connected to which has a self-diagnostic and reporting ability. The OBD port enables the vehicle’s owner or vehicle’s technician to access information relating to the health state of various vehicle sub-systems.

OBD REMAPPING BENEFITS FOR TURBOCHARGED DIESEL ENGINES

Many see the modern crop of Turbocharged diesels as the future of road car tuning. Even in North America, a nation famed for its love of the petrol engine is starting to come around to the benefits of turbo diesel passenger cars in particular. These engines offer fantastic potential for reliable low cost tuning without removing any of the appeal of buying and running a turbo diesel powered vehicle, such as economy, reliability and longevity.

After your ECU upgrade via OBD to your turbocharged diesel engine, you will enjoy:

  • Increased horsepower
  • Increased torque
  • Better throttle response
  • Smoother power delivery
  • Improved fuel economy
  • Safer overtaking
OBD REMAPPING BENEFITS FOR TURBOCHARGED PETROL ENGINES

Turbocharged petrol engines have always been regarded as the sports flagship engine for good reason. They boast far higher power & torque figures than a non-turbocharged power-plant with similar displacement and are usually fitted to the manufacturer’s flagship models. They are also ideal candidates for remapping as the ECU also controls the wastegate (turbo boost pressure control).

After your ECU upgrade via OBD to your turbocharged petrol engine, you will enjoy:

  • Increased horsepower
  • Increased torque
  • Better throttle response
  • Smoother power delivery
  • Safer overtaking
WHAT DO YOU ACTUALLY MODIFY IN MY VEHICLE?

We do not change any hardware in your vehicle, we just modify the operating parameters in the ECU’s program or ‘map’. In many cases the map stored on the ECU’s processor can be accessed via the on-board diagnostics port (OBD) in the vehicle, normally found under the dashboard. In some newer models the ECU will have to be removed from the vehicle and the casing opened, our technicians will then use specialist tools to read the original map straight from the processing chip.

The technician will then upload the original map to our map writing team who will adjust the parameters to maximise the performance, fuel economy or a clever blend of both. Depending on the vehicle and ECU type the chip tuning process can take under an hour and if at any time you wish to return your vehicles ECU to its original default settings, this can be done easily and free of charge as we always keep a copy of the original software as a backup.

SAVING FUEL WITH OBD REMAP?

When we remap a vehicle, especially when fuel saving is the priority we focus on improving the low end torque in particular and widening the power-band as far as we can.

This increase in low end torque will mean less throttle pedal input is required to maintain cruising speeds, when fully laden or when on a gradient. It will also mean that the vehicle will be more comfortable in higher gears at slower speeds as well requiring fewer gear changes overall.

If you combine these factors with adjusting your driving style to make the most of the extra low end torque you will see an improvement in fuel consumption. This is most effective on turbo-diesel engines where the savings could be as much as 20%!

Car Repair & Servicing

We offer as well a number of different car repair services including: MOT and MOT Test Repairs, Car Servicing, General Car Repairs (Exhaust Repairs; Brake Replacement; Clutch Repairs), Car Diagnostics, Body Work (from minor to major repairs), Breakdown & Recovery Services.

 

Saving fuel with ecu remap/programming

When we remap a vehicle, especially when fuel saving is the priority, we focus on improving low-end torque and widening the power delivery as far as possible.