Technician A says the catalyst's ability to store and release oxygen is a direct indication of the catalyst's performance. Technician B says the catalyst monitor compares the signal from both the upstream and downstream oxygen sensors. Who is correct?
A) A only
B) B only
C) both A and B
D) neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because the catalyst's ability to store and release oxygen affects its efficiency in converting harmful emissions. Technician B is also correct because the catalyst monitor does indeed compare signals from both the upstream and downstream oxygen sensors to assess the catalyst's performance.

Technician a Says the Catalyst's Ability to Store and Release