Guess who is NOxing at your tailpipe? Test your skills with this quick quiz!
What gasses are reduced by the EGR? NOx HC CO2 O2 The potential cause of an EGR circuit fault DTC could be clogged passages. True False NOx gasses are created __________ with retarded ignition timing with advanced ignition timing with decreased compression during an intake manifold vacuum leak Insufficient flow DTC can be caused by all of the following EXCEPT stuck closed EGR valve non-functioning vacuum solenoid stuck open EGR valve partially plugged EGR pipe Cam phasing can be used to reduce NOx emissions. True False
