Sentra Wagon L4-1597cc 1.6L SOHC (E16S) (1986)
Catalytic Converter: Description and Operation
Three Stage Converter
The three-way catalytic converter utilizes a catalyst to accelerate the recombustion of HC and CO and a catalyst to reduce NOx in the exhaust gas,
changing them into harmless CO2, H2O, and N3. In order to maintain mixture ratios at the ``stoichiometric'' point, the point at which the converter works
most efficiently, a mixture ratio feedback system is employed. In this system, an exhaust gas sensor monitors oxygen content in the exhaust gasses and
signals the fuel system to alter the air/fuel mixture to maintain the ``stoichiometric'' level.