All of the Following Statements Are Correct EXCEPT ________

Multiple Choice

All of the following statements are correct EXCEPT ________.

A) linear EGR systems require exhaust backpressure
B) many vehicles use the MAP sensor to monitor EGR operation
C) some systems use a delta pressure feedback system to monitor EGR operation by measuring exhaust system pressure
D) OBD-II vehicles require monitoring of the EGR system