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Author Question: OBD-II regulations require that the EGR system be tested. Technician A says that the PCM can monitor ... (Read 76 times)

HudsonKB16

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on: Aug 13, 2021
OBD-II regulations require that the EGR system be tested. Technician A says that the PCM can monitor the commanded position of the EGR valve to determine if it is functioning correctly. Technician B says that the PCM can open the EGR valve and monitor for a change in the MAP sensor or oxygen sensor reading to detect if the system is functioning correctly. Which technician is correct?
◦ Technician A only
◦ Technician B only
◦ Both technicians A and B
◦ Neither technician A nor B


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Marked as best answer by HudsonKB16 on Aug 13, 2021

jharrington11

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Reply #1 on: Aug 13, 2021
Both technicians A and B


HudsonKB16

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Reply 2 on: Aug 13, 2021
Thanks for the timely response, appreciate it

lindahyatt42

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Reply 3 on: Yesterday
Wow, this really help

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