Emission Control Systems: Application and ID
Engine V6-191"/3.1L
Fuel System MPFI
DEVICES & SYSTEMS
CEC Computerized Engine Controls
EGR[1] Integrated Exhaust Gas Recirculation System
EGR[2] Digital Exhaust Gas Recirculation System
EVAP [3] Evaporative Emission Control System
PCV Positive Crankcase Ventilation System
TWC [4] Three-Way Catalyst
[1] All Wheel Drive
[2] Two Wheel Drive
[3] EECS is the manufacturer's acronym
[4] Oxidation Reduction Catalyst (ORC)