Author Question: The following statements are all correct EXCEPT ________. (Read 626 times)

burton19126 · **on:** Aug 13, 2021

Question 1

The following statements are all correct EXCEPT ________.
◦ Linear EGR systems require exhaust backpressure
◦ OBD-II vehicles require monitoring of the EGR system
◦ The MIL will be turned on after the second failure
◦ Many vehicles use the MAP sensor to monitor EGR operation

Question 2

The following statements are all correct EXCEPT ________.
◦ Low restriction exhaust systems will have no effect on EGR system operation
◦ The PCM controls vacuum applied to vacuum operated EGR valves
◦ A potentiometer is used to determine EGR valve position on many OBD-II systems
◦ Some systems monitor EGR operation by using a MAP sensor