When testing an EGR system for proper operation using a vacuum ...

[clippers!]

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

Question 2

The oil pressure in an engine is determined by all of these EXCEPT ________.
 
  A) Oil temperature B) Oil viscosity
  C) Transmission gear range D) Engine RPM

[phuda]

Answer to Question 1

A

Answer to Question 2

C

[clippers!]

Wow, this really help

[FergA]

Thanks for the timely response, appreciate it