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Author Question: When testing an EGR system for proper operation using a vacuum gauge, how much should intake ... (Read 67 times)

theo

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on: Aug 13, 2021

Question 1

What causes the nitrogen and oxygen in the air to combine and form NOx?
◦ Sunlight
◦ Any spark will cause this to occur
◦ Heat above 2,500 F (1,370 C)
◦ Chemical reaction in the catalytic converter

Question 2

When testing an EGR system for proper operation using a vacuum gauge, how much should intake manifold vacuum drop when the EGR valve is commanded open by a scan tool?
◦ 6-8 in. Hg.
◦ 1-2 in. Hg.
◦ 6-8 PSI
◦ 14.7 PSI


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Marked as best answer by theo on Aug 13, 2021

ASDFGJLO

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Reply #1 on: Aug 13, 2021

Answer 1

Heat above 2,500 F (1,370 C)

Answer 2

6-8 in. Hg.


theo

  • Member
  • Posts: 698
Reply 2 on: Aug 13, 2021
YES! Correct, THANKS for helping me on my review

brbarasa

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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