California

EGR System:

PURPOSE
System lowers combustion chamber temperatures to reduce NOx emissions.

LOCATION
^ EGR valve: beneath intake manifold near throttle body.
^ EGR solenoids: bracket on rear of intake manifold.
^ EGR function sensor: on EGR valve.

OPERATION

System recirculates a portion of exhaust gas through the EGR valve and intake manifold into the combustion chambers. To improve driveability when engine is cold, system does not operate when coolant temperature is below 131°F (55°C).

At operating temperature, system functions as described on image chart: