Closed-loop EFI car catalytic converters blockage is a very common problem, especially in congested city roads. Fuel poor quality areas, the problem is more prominent. TWC blockage caused not only a serious increase vehicle fuel consumption, power down, excessive exhaust; make more serious red-hot exhaust pipe, causing spontaneous combustion vehicles. For a long time, garages for clogged catalytic converter is no effective means of prevention. There is no effective means of governance for the clogged catalytic converters. Only by taking the replacement methods. Such a waste of resources, but also increase the burden on the user's vehicle, some are not responsible for the repair shop or even take the carrier within the catalytic converter removed way to make the vehicle more serious environmental pollution, so clogged catalytic converter closed-loop EFI car urgent problem. First, the catalytic converter clogged reasons: 1, the internal factors: the precious metal catalyst for sulfur, phosphorus, carbon monoxide, the catalytic converter carrier. Incomplete combustion, lead, manganese and other elements have a strong adsorption, it is easy to form a complex chemical composition of the complex. At the same time a strong oxidizing catalytic noble metal catalyst, adsorption gasoline incomplete combustion is more easily oxidized, condensation polymerization to form glial carbon, causing clogged catalytic converters. 2, the external factors: a, Gasoline: Gasoline high sulfur content in the catalytic converter is easy to form chemical complexes causing blockage. Poor quality oil, resin and more likely to cause gasoline catalytic converter clogged. The use of lead or manganese antiknock gasoline is likely to cause the catalytic converter clogged although China has prohibited the use of leaded gasoline, but in some areas during the storage of gasoline in the transportation of lead pollution. Some small refineries in order to reduce costs, is still illegal use of lead antiknock, manganese ANTIKNOCKS, in developed countries have banned the use, but China is still in some places still in use. b, oil: Long-term use of sulfur, phosphorus antioxidant oil is likely to cause the catalytic converter clogged. c, the road: as the car accelerated, resulting in incomplete combustion maximum deceleration conditions, so long traveling on congested roads is likely to cause the catalytic converter clogged. d, fuel injectors and intake to avoid demolition cleaning maintenance: Due to the cleaning process will flush down a lot of gum deposits. So it is likely to cause the catalytic converter plug, which is also making some vehicles' fuel injectors and intake to avoid demolition cleaning maintenance "after the cause of increased fuel consumption. e, turbocharged: turbocharged vehicles prone to clogging of the catalytic converter, which is mainly due to improper operation caused by the driver. Wuhan Connaught Trading Company is China National Materials Germany promise for lubricants and Johnson & Johnson architectural glass membrane Hubei only designated agents. China National Materials Company will promise to lubricants to China, get the Mercedes-Benz, Volkswagen, BMW, Porsche factory certification from the German "blood" technology from the track. Contact: Mr. Li Tel: 15071058883 Contact Landline: 027-86616250 QQ: 464709734 Company Website: www.rowehb.com