Page 174 - Methods For Monitoring And Diagnosing The Efficiency Of Catalytic Converters A Patent - oriented Survey
P. 174
156 Methods for Monitoring and Diagnosing the Efficiency of Catalytic Converters
2) when a leak is detected, stopping or correcting
a) a feedback control of the enginelair fie1 ratio based on the oxygen
content in the exhaust gases detected by the exhaust gas oxygen
sensor, or
b) the diagnosis of the catalytic converter based on the output
signals of the upstream and the downstream sensor
Other methods can be found in JP6265498 (1994), JP8005602 (1996).
