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Registered
Join Date: May 2005
Location: south western ct
Posts: 340
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what is an air injection valve? part of your smog eqpt.. a preasure differential opperated switching diaphragm that deals with supplying o2 to either your cat or to atmosphere vbased on engine opperation as a catylist to burn off remaining hco's with o2 from your intake or to vent to atmosphere to avoid backfiring on decel.
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a little of this + a little of that
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