Emission Control Systems: Application and ID

EMISSION CONTROL DEVICES AND SYSTEMS

TWC Three-Way Catalytic Converter
PCM Powertrain Control Module
MIL Malfunction Indicator Light
MFI Multipoint Fuel Injection
EGR Exhaust Gas Recirculation
EVAP Evaporative Emission Control
HO2S Heated Oxygen Sensor
PCV Positive Crankcase Ventilation
DIL Distributorless Ignition
IATCS Intake Air Temperature Control System

NOTE: 2 spark plugs per cylinder