Operation CHARM: Car repair manuals for everyone.

Emission Control Systems: Application and ID


Engine Displacement 4.0 Liter (242 cid)
Fuel System MFI

Emission Control Devices and Systems:
CEC Computerized Engine Controls
EGR Exhaust Gas Recirculation
EVAP Evaporative Emission Control
FR Fill Pipe Restrictor
MIL Malfunction Indicator Light
HO2S (Heated) Exhaust Gas Oxygen Sensor
PCV Positive Crankcase Ventilation
SPK Spark Controls
SUB/REAR TWC (USA Only) Sub/Rear Three-way Catalyst
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 Calibration Number.