emission repair Maidstone

SCR (ang. Catalic Selective Reduction) urea dosing system (AdBlue), consists of a reservoir of AdBlue, a pump ensures sufficient fluid pressure, cares about its thermal properties as well as the same waveform monitoring your reduction of emissions as well as the SCR catalyst. The principle of functioning It lies in treating exhaust gases during serp operation. Everything happens without adjusting the operating mode on the engine. AdBlue dosing system is autonomous and isn't going to affect the operation on the engine, does not also raise fuel consumption. The high exhaust heat causes the injected urea alterations into ammonia and skin tightening and and then the SCR catalyst ammonia as well as reaction with the nitrogen oxides formed due to which the volatile nitrogen as well as water vapor. System failures They are mainly relevant to low temperatures. AdBlue freezes at some sort of temperature below 11, 5st C which makes the machine at these temperatures usually do not work. Only a few minutes after starting the serp heater, which is controlled by the module AdBlue (AdBlue push controller) causes fluid to loosen up the achievement of your liquid and liquid style urea dosing starts. Crystallization of liquid that occurs during freezing and thawing causes clogging on the AdBlue injector. Clogged injector is the most common causes of failing AdBlue dosing system. NOx sensor In newer versions (Euro5), the second temperature sensor exhaust system has been replaced with nitrogen oxide sensor. The sensor is quite expensive and simultaneously as often crashes. Failure catalyst usually causes the design of errors related towards the NOx sensor (lots of emissions). Reducing power / torque If the failure occurs in the vehicle emission reduction process, the dashboard appears icon as well as the message about the failing of AdBlue dosing process. If the deficiency is not remedied within 50 hours of torque is going to be reduced to 60%. Reduction in power occurs most often in cars manufactured immediately after 11. 2007 years, if the car had accomplished a software update can be obtained from copies made earlier. Vehicles of special companies, ie. Police, Ambulance, Army does not have the stop. Repair of AdBlue pump normally is determined by the crystallization of urea in the interior and clogging pipe joints.