All of the following statements are correct EXCEPT ________. ...

[faduma]

All of the following statements are correct EXCEPT ________.
 
  A) Some systems use a delta pressure feedback system to monitor EGR operation by measuring exhaust system pressure
  B) Linear EGR systems require exhaust backpressure
  C) Many vehicles use the MAP sensor to monitor EGR operation
  D) OBD-II vehicles require monitoring of the EGR system

Question 2

All these are causes of catalytic converter failure EXCEPT ________.
 
  A) Excessive temperature B) Contamination
  C) Incorrect air/ fuel mixture D) All of these are causes of converter failure

[Moriaki]

Answer to Question 1

B

Answer to Question 2

D

[faduma]

Excellent

[shewald78]

Gracias!