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Home >> Pontiac >> 1978 >> Sunbird Base, 2.5L Eng VIN 1, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Electronic Fuel Control >> Operation >> Phase II Catalytic Converter
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Phase II Catalytic Converter

This converter, also called a 3-way converter, is able to control all three major exhaust emissions: NOx, HC and CO. A special coating on the catalyst beads makes this possible.

NOTE: For further information, refer to CATALYTIC CONVERTERS article in EXHAUST EMISSION SYSTEMS section.
Fig 1: Illustrating the Electronic Fuel Control (EFC) System
G09354742Courtesy of GENERAL MOTORS COMPANY
Fig 2: Electrical Wiring Schematic of the Electronic Fuel Control System
G09354743Courtesy of GENERAL MOTORS COMPANY