Emission Control Systems: Application and ID

ENGINE 2.5 Liter (153 cid)
FUEL SYSTEM MFI

DEVICES & SYSTEMS:
CEC Computerized Engine Controls
EGR Exhaust Gas Recirculation
EVAP Evaporative Emission Control
FR Fill Pipe Restrictor
MIL Malfunction Indicator Light
HO2S [1] (Heated) Exhaust Gas Oxygen Sensor
PCV Positive Crankcase Ventilation
SPK Spark Controls
TWC Three-way Catalyst

Emission Control System (ECS) Configuration Label
An ECS Configuration Label is located in the engine compartment. It identifies the emission control system and the engine calibration number.


[1] California models have two oxygen sensors. One at the rear exhaust manifold, another after the catalyst.