Engine: Application and ID

Engine Emission Control

CAUTION: Do not remove any part of the engine emission control system. Operating the engine without the engine emission control system will reduce fuel economy and engine ventilation. This will weaken engine performance and shorten engine life.

The engine emission control system consists of the:
^ positive crankcase ventilation (PCV) system.
^ exhaust gas recirculation (EGR) system.

Typical Vehicle Emission Control Information (VECI) Decal:

Typical Vehicle Emission Control Information (VECI) Decal

The Vehicle Emission Control Information (VECI) decal shows:
^ components of the emission control system.
^ the correct vacuum hose routing.
^ the color stripe of the vacuum hoses.

The PCV system uses intake manifold vacuum to ventilate the crankcase and return the fumes to the intake manifold for combustion.