fd2baac9

2.7.7.36. Catalytic converter

Efficiency of catalytic converter is shown in its ability to oxidation of carbon monoxide and hydrocarbons (SN). The control unit of the engine compares signals forward and back oxygen sensors for definition of the moment when tension of a signal of the back oxygen sensor begins to coincide with tension of a signal of the forward sensor. In process of wear of catalytic converter the form of a signal of the back oxygen sensor begins to coincide with a form of a signal of the forward sensor since converter is saturated with oxygen and becomes incapable with former efficiency to use oxygen for oxidation of hydrocarbons and carbon monoxide in water and carbon dioxide. At completely worn-out converter signals of the forward and back oxygen sensor completely coincide.