Other information:
Check
NOTE:
The object used in this system check can be
fabricated using a 9 cm diameter (3 in I.D.) pipe, 100 cm (39 in) in
length (available as Polyvinyl Chloride (PVC) pipe, or similar from a
hardware or plumbing supply.
NOTE:
The following system check should be carried out with the vehicle on a level surface...
System Operation
Exhaust Gas Recirculation (EGR) Systems
The EGR system controls the NOX
emissions. Small amounts of exhaust gases are recirculated back into
the combustion chamber to mix with the air to fuel charge. The
combustion chamber temperature is reduced, lowering NOX emissions
Exhaust Gas Recirculation (EGR) System — Differential Pressure Feedback
The EGR system consists o..