0 TDI Hybrid Killer Turbo Downpipe Hard Pipe Kit BKD BMN at the best online prices at eBay! Free delivery for many products! 2006 Polo 1. Hey all! New to the forum and new to Audi in general. From racing we know how critical timely and accurate service is. Evolve’s Catless Downpipes are made from T304 stainless steel and are 3″ in diameter, stepping down to 2. The ECU automatically triggers active regeneration when no regeneration has been activated in the last 750-1000 kilometers, regardless of the saturation level.Darkside downpipe DPF Delete Downpipe and Low Pressure EGR Delete for 1. It safeguards the DPF from exceeding unhealthy levels of saturation. This method of regeneration depends on the distance traveled. At this point, there is too much risk that the DPF will be faulty and must therefore be replaced. If saturation has exceeded a threshold of 45 grams, regeneration is no longer possible. At this point, the DPF must be regenerated in a garage by experienced technicians. In this case, active regeneration is blocked by the ECU in order to prevent degradation of the filter.
If the forced regeneration is not successful and saturation has exceeded the threshold to a level of 40 grams, in addition to the appearance of the glow plug and engine light warning indicators (see below), it is necessary for the driver to take the vehicle to the dealership or a garage. This signal prompts the driver to perform a regeneration route that is, to run the vehicle at high speeds over a certain distance in order to reach temperatures sufficient for the regeneration of the DPF. If the saturation level reaches a threshold of 24 grams, the indicator lights on the DPF will cluster. On very short drives, it is impossible to reach the temperature needed to regenerate the DPF. The transmitter signal, located upstream of the DPF, is used by the ECU to determine the amount of fuel to be injected in the second post-injection. The heat generated during this stage can reach temperatures of 1140☏ inside the DPF. The unburned hydrocarbons are oxidized by the vapor inside the catalyst converter. Triggering a second post-injection, causing the unburned fuel to evaporate inside the combustion chamber.
Triggering a first post-injection following the principal injection in order to increase the combustion temperature. Deactivating the EGR valve from recycling exhaust gases in order to increase the combustion temperature. Regulating the flow of air through the electronic throttle control (ETC). To achieve this increase in temperature, the ECU will perform several actions: Quantity of carbon particles (grams), the ECU will activate forced regeneration of theĭPF by raising the temperature of the exhaust gas to 1020☏/1200☏. At a specific voltage, corresponding to the The more the filter is clogged, the higher the voltage (in volts) Outlet of the DPF, the difference in pressure corresponding to the degree of saturation The pressure sensor measures the difference in pressure between the inlet and the A model based on the flow resistance of the DPF, which calculates saturation according to signals reassembled by the differential pressure sensor, temperature transmitters, and air flow meter, which then all inform the ECU of the degree of saturation inside the DPF. A model based on the driver profile, which calculates saturation according to a specific pattern of signals coming from the temperature transmitters of the exhaust gas as well as the oxygen sensor. The degree of carbon accumulation inside the DPF is calculated using two models programmed within the ECU: When a clogging threshold is reached (18 grams), the engine’s computer will trigger active regeneration. Consequently, soot particles are not eliminated and instead accumulate inside the filter. In cases of predominantly urban use, the temperature of the exhaust gas fails to reach sufficient temperatures to achieve passive regeneration. The temperature of the exhaust gas will reach around 660☏ - 930☏. This is achieved at standard highway speeds (3000 r/min). Soot particles are burned off steadily without the intervention of the ECU. The different strategies for regeneration To prevent the DPF from becoming dirty or clogged, which consequently impairs its function, it must be regenerated regularly by a process of burning off the soot particles that have accumulated inside the filter.