All of the Following Statements About the EGR Valve Are

Multiple Choice

All of the following statements about the EGR valve are true, EXCEPT:

A) the EGR valve creates a controlled vacuum leak between the intake and exhaust manifolds
B) an EGR valve that is stuck closed will cause high NO_X emissions
C) the vacuum to many vacuum actuated EGR valves is controlled by a solenoid
D) an EGR valve that is stuck in the open position will cause detonation