Automotive Technology
Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Chapter 24, Problem 3ASRQ

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?

  1. Technician A

  • Technician B
  • Both A and B
  • Neither A nor B
  • Blurred answer
    Students have asked these similar questions
    While discussing the MIL on OBD II systems: Technician A says that the MIL will flash if the PCM detects a fault that would damage the catalytic converter. Technician B says that whenever the PCM has detected a fault, it will turn on the MIL. Who is correct? a. Technician A • Technician B • Both A and B • Neither A nor B
    What affects the efficiency of a catalytic converter? exhaust quality air/fuel ratio its temperature fuel quality
    Technician A says that the PCM illuminates the mil if a defective causes emission levels to exceed 2.5 times the emission standards for that model year vehicle. Technician B says that if a misfire condition threatens engine or catalyst damage, the PCM flashes the mil. Who is correct

    Chapter 24 Solutions

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