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What does this set up do?
The hose runs from the back of the i/c to the auxiliary air valve to the idle air control valve back to another outlet on the i/c. The small nipple on the back of the aux. air valve vents to atmosphere. Is this actually doing anything? 
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Harold
'79 930/DP935 (sold)
'68 VW 3.3 Turbo Crewcab
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