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Author Question: A vehicle fails an emissions test for high NOx. The engine has an EGR valve position sensor. The ... (Read 92 times)

mmm

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on: Nov 30, 2019
A vehicle fails an emissions test for high NOx. The engine has an EGR valve position sensor. The engine has a rough idle problem, and a diagnostic trouble code (DTC) representing the EGR (Exhaust Gas Recirculation) valve is stored in the powertrain control module (PCM) memory.  Technician A says the EGR valve may be stuck open.  Technician B says the EGR passages may be restricted with carbon.  Who is right?
◦ Technician A
◦ Technician B
◦ Both technicians
◦ Neither technician
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Marked as best answer by mmm on Nov 30, 2019

wilsonbho

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Reply #1 on: Nov 30, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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mmm

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Reply 2 on: Nov 30, 2019
Thanks for the timely response, appreciate it

juliaf

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Reply 3 on: Yesterday
Wow, this really help

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