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When Testing an EGR System for Proper Operation Using a Vacuum

Question 8

Multiple Choice

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?


A) 6-8 PSI
B) 6-8 in. Hg.
C) 1-2 in. Hg.
D) 14.7 PSI

Correct Answer:

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