LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

fitting on front of intake manifold?

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Old 03-21-2005, 07:01 PM
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fitting on front of intake manifold?

from the factory there is a vacume fitting directly under the throttle body. what does that connect to i redid some vacume lines and have been using it for my opti line.
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Old 03-21-2005, 07:27 PM
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Re: fitting on front of intake manifold?

On a 1994 intake there is no vacuum port under the throttle body. 1995 and later have that and it is used for the PCV vacuum.
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Old 03-21-2005, 07:39 PM
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Re: fitting on front of intake manifold?

i must have added it when i did my opti conversion. becaue it is on there well at leas some thing else was nto supposed to be there. thank you
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