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Exhaust Gas RECIRCULATION: Operation: Notes

Venturi Vacuum Control provides signals for EGR operation on V8 and 6-cylinder models. Ported Vacuum Control is used on 1.7L and 2.2L 4-cylinder engines. 2.6L engines utilize a carburetor vacuum-controlled Dual EGR Control Valve in addition to a mechanically-linked Sub EGR Control Valve.