Automotive Technology: A Systems A...
Solutions
Automotive Technology: A Systems A...
While discussing the catalyst efficiency monitor: Technician A says that if the catalytic converter is not reducing emissions properly, the voltage frequency increases on the downstream HO2S. Technician B says that if a fault occurs in the catalyst monitor system on three drive cycles, the MIL will be illuminated. Who is correct?
- Technician A
The technician with correct approach while discussing the catalyst efficiency monitor.
Given information:
Technician A says that if the catalytic converter is not reducing emissions properly, the voltage frequency increases on the downstream HO2S.
Technician B says that if a fault occurs in the catalyst monitor system on three drive cycles, the MIL will be illuminated.
The purpose of the catalytic converter is to reduce the emission levels of an engine at the exhaust by storing O2 when the mixture is lean and releasing the stored O2 at times when the mixture is rich. A catalyst efficiency monitor measures the efficiency of the catalytic converter by checking the oxygen storage capacity of the converter. If the catalytic converter is not reducing emissions properly, it implies its efficiency of storing O2 is reduced...
Chapter 24 Solutions
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