TUNING FILES SERVICE

An improved turbocharger can be combined parts of different sizes and models of different manufacturers, such as Garrett or BorgWarner, to make the best turbo.

There are many variants of hybrid turbochargers ranging from turbos with only one component changed or modified to a modification of all components, there are no rules for hybrid turbos it all depends on what you want to achieve

The Stage 3 are developed for maximum power. We remove all limitations from the ECU and change the parts to the ones that can sustain the extra stress. If there are different aftermarket performance parts installed in the car, a lot of different configurations become possible. For a proper Stage 3 Tuning, it is important that the client provides complete data logs.

We need full information about these modifications.

Torque Monitoring is functions makes ecu detect if the values of torque are inconsistent with predefined ones and this way they are automatically turned on to "safe mode". Almost all new cars have this torque control system installed and this is exactly why many cars do not have enough power during acceleration. 

There are many cases where the car refuses to accelerate. When driving at a very low speed and pressing 100% on the accelerator pedal, the car remains as if frozen... this is how this system works (it is more noticeable in vehicles with eco mode) this is very dangerous in many road situations.

To get the full potential of your engine, this system must be disabled, this does not necessarily have to be accompanied by an increase in power, you just have the full power of your engine.

In many cases it is sufficient to remove this system but it can also be modified. This is done by modifying the software and programming the engine control module of your car.

The manifold absolute pressure sensor MAP sensor is one of the sensors used in an internal combustion engine's electronic control system.

Engines that use a MAP sensor are typically fuel injected. 

The manifold absolute pressure sensor provides instantaneous manifold pressure information to the engine's electronic control unit ECU. The data is used to calculate air density and determine the engine's air mass flow rate, which in turn determines the required fuel metering for optimum combustion and influence the advance or retard of ignition timing. A fuel-injected engine may alternatively use a mass airflow sensor MAF sensor to detect the intake airflow. A typical naturally aspirated engine configuration employs one or the other, whereas forced induction engines typically use both; a MAF sensor on the Cold Air Intake leading to the turbo and a MAP sensor on the intake tract post-turbo before the throttle body on the intake manifold.

The EGR valve is located between the intake manifold and the exhaust manifold where it acts as a communicator, allowing part of the exhaust gases to return to the combustion chamber through the intake manifold to be burned again. This step generates a drop in the combustion temperature, which directly affects the reduction of nitrogen oxide (NOx) emitted and discharged abroad.

Driving at low revs and high gears makes the EGR work most of the time. 

Especially driving in the city is the one that can cause the most problems for the EGR valves and particulate filters, especially in diesels.

EGR causes many of the mechanical failures in internal combustion engines. After an engine gets a certain mileage EGR becomes a problem, accumulating soot in the intake system passages and on the engine valves.

All this causes the engine to no longer work efficiently.

A lot has been written on this topic about the pros and cons of removing egr.

The particle filter also called FAP or DPF is an element that is placed in the exhaust system and later burns the particles to convert them into carbon dioxide and water mainly.

It is placed near the engine to take advantage of the higher temperature of the gases that come out of the engine. When this temperature is reached, the particles can be combusted without the need for an additive.

In this case, the filter is placed further away from the engine and to reach the combustion temperature of the particles, an additive is needed so that it can work correctly. This additive is introduced into a tank and has a range between 60,000 and 100,000 km.

In this case, before the filter, an injector is mounted that injects the AdBlue so that the filter can be cleaned. This type of filter is unreliable due to problems with the AdBlue system itself.

The regeneration process is connected to the backpressure value, that is the difference between the incoming pressure of the air in the filter and the outcoming pressure: the more the filter is clogged, the higher is the difference, until the car recognizes the limit value and let the regeneration begin. The most common particulate filters are FAP and DPF which are different in functioning but especially in the regeneration strategy.

In order to regenerate, the FAP needs to maintain a high rpm speed for a certain time. For example, circulate at 70-80 km/h at 3000-3,500 revolutions for a while. If it has reached a high saturation point, a forced regeneration must be carried out. If the saturation level is too high and we continue using the vehicle since we cannot go through the FAP, the gases will not be able to leave the exhaust system and the filter itself will break.

Depending on the use that is given to the vehicle, short trips, exclusive use in the city, driving at low speeds, low quality oil and fuel, engine mechanical problems, etc... Another way to saturate the filter and cause damage is by interrupting repeatedly regeneration cycles.

The removal of a particulate filter has two parts, emptying the ceramic and reprogramming the engine control unit (ECU). It is not recommended to electronically remove a FAP without removing the ceramics.

AdBlue Systems Issues

Most common problems are: 

The particulate filter is located after the catalytic converter and collects pollutants from the engine. Gasoline engines don't really produce particulates like diesel engines, so filter regeneration is an easier process. Gasoline engines run at a higher exhaust gas temperature and this helps filter regeneration.

                                                           

Removal is done by programming the ECU and modifying the software. In some cases the flaps are physically removed, in other cases where the mechanical condition of the flaps is good and the failure is due to an electronic actuator the actuator function can be disabled and the flaps remain in place.

The removal has no negative consequences with the software modification, their work is compensated and the car runs with its full power.

The auto manufacturers did not provide their customers a way to permanently delete the auto start-stop technology from their vehicles. It has been proven that the amount of money saved on gas does not outweigh the increased cost to replace the worn out components of the engine and ignition system.

Most of the modern vehicles have speed limiter applied by manufacturer and in that way, the device prevents your car from being limited to a set speed, thus making the driving process easier. Some of the modern vehicles have intelligent speed limit systems that artificially change the speed of the vehicle based on pre-programmed values, such as road maps, satellite position or certain signals. If the vehicle reaches the speed limit, the speed limiter will prevent it from going faster.

Special sensors in the vehicle detect how fast you are going. This information is then sent to the electronic control unit (ECU). When the set speed is reached the ECU restricts the flow of air and fuel to the engine. That way, the maximum speed of your vehicle is limited and you cannot exceed it.

The best benefit of speed limiter removal is improved performance and a higher top speed. After speed limiter deactivation by reprogramming the ECU, the default settings will be rewritten and the speed limiter will be deactivated or adjusted. Deactivation of the speed limiter through the electronic control unit is the best solution to obtain more speed and power so that the vehicle is not limited by the manufacturer's parameters.

1. - Many car brands are equipped with a muffler in the exhaust system to reduce noise.

2. - Accumulation of exhaust gases in the exhaust system and the greater recirculation through egr for their re-burning. At low revs in high gear, the exhaust valve closes during the initial part of the induction stroke and this results in higher internal pressure. This operation together with the EGR valve should in theory reduce the NOx level.

3. - In emission control, exhaust flaps are used to divert the flow of exhaust gases. In this way they activate HC (Hydrocarbon) absorbers or bring the starter catalyst up to operating temperature more quickly. A new method of emission control is the use of DeNOx catalytic converters.

The immobilizer is one of the most efficient anti-theft systems that has been designed and installed. This is an electronic system which protects the vehicle from theft.

The principle of this operation was that the Immobilizer always monitored the engine management system (ECU). The ECU will not be unlocked and it would not order the fuel injection system to inject fuel unless the recognize a key. 

The system have three principal components:

If the immobilizer does not recognize the key, the vehicle will not start and the immobilizer follows the following safety actions:

Kickdown lag.

When you use kickdown to accelerate the engine revs up but it takes time for the box to select the correct gear and the result is a delay in acceleration.

To solve this problem, nothing often helps, including a software update, and in many cases this causes problems with the gearbox because it does not select a gear and the clutches "hit" repeatedly, which leads to their wear and damage.

Open shutters allow air to flow through the radiator and into the engine compartment to promote cooling. When cooling air is not needed, the shutters close, rerouting air around the vehicle to reduce aerodynamic drag and fuel consumption. 

What is a shutter grille problem

Common Symptoms of Faulty Grille Shutter Actuators

Overheating Engine, if the shutters fail to open, it can restrict airflow and cause the engine to overheat. Decreased Fuel Efficiency, faulty actuators may fail to close the shutters at high speeds, leading to increased drag and reduced fuel efficiency.

The NOx sensor measures the level of the SCR state, to do this it needs exhaust fluid (AdBlue-DEF) to activate the SCR. ECU-DCU controls the pump and fluid dispenser based on data coming from the sensor. With the heat of the exhaust gases, Adblue will decompose into ammonia and carbon dioxide.

If too much Adblue is injected into the exhaust, the SCR catalyst can become saturated with ammonia. For a NOx sensor, ammonia and NOx look the same and it reports the wrong amount of NOx in the exhaust stream. When the exhaust Catalyst - DPF - FAP gets clogged with ammonia the ECU-DCU stops dosing and injects Adblue-DEF so the destruction of the catalyst itself becomes inevitable.