A Dongfeng Nissan Tiida just ran more than 2000 kilometers of vehicle fuel, exhaust pipe black smoke, speed up the weak, the engine noise, before the exhaust pipe burning red phenomenon, the car to the service station when the three-way catalytic Burning red hair, exhaust pipe black smoke, engine missing cylinder, remove the spark plug found 2 cylinder black, loaded a new spark plug the car a few minutes to appear missing cylinder phenomenon, in the removal of the nozzle to check the fuel injection , Found that 2-cylinder injector fuel injection than other three times the cylinder. The fuel injector is not fueled in the cylinder.
     The reason for the failure is that the 2-cylinder injector injects too much oil, and the exhausted gasoline flows into the exhaust pipe to burn, causing the exhaust pipe to burn red and the three-way catalytic loosen.
     Replacement of 2 - cylinder Nozzle Ternary Catalytic.