EGR venturi vacuum amplifier

EGR venturi vacuum amplifier
A device that uses a relatively weak venturi vacuum to control a manifold vacuum signal to operate the EGR valve. Contains a check valve and relief valve that open whenever the venturi vacuum signal is equal to or greater than manifold vacuum

Dictionary of automotive terms. 2015.

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  • venturi vacuum amplifier — (VVA) used with some EGR system so that carburetor venturi vacuum can control EGR valve operation; venturi vacuum is desirable because it is proportional to the airflow through the carburetor …   Dictionary of automotive terms

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