This engineering project is described the unefficien of Catalytic Converter this project compare the result of fuel rated consumption Cabonmonoxide(CO) and Hydrocarbon (HC) of the engine that use clotted Catalytic Converter and unuse the Catalytic Converter. We use exhausted gas analyser to measure the quanlity of fuel rated consumption jCabonmonoxide (CO) ,and Hydrocabon (HC) every 5 mins, for 4 times, respectively. After that we compare the avery of each engine. The result is the fuel rated consumption at the speed of 1000 and 1500 rev./min. is lower than the clotted Catalytic Converter at the speed of 2000 ,and 2500 rev./min. which means the fuel rated consumption and the quantity of Cabonmonoxide (CO) of theclotted Catalytic Converter arc higher than the Catalytic Converter. However , the quantity of Hydrocabon (HC) is not different.
