LT1 Manifold question, bear with me please.
07-23-2010, 03:34 AM
#1
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LT1 Manifold question, bear with me please.
If you take the throttle body off and look into the manifold right past throttle blade openings there are two round holes right inside towards center line on the bottom. What are they for? PCV?
07-23-2010, 10:29 AM
#3
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This isnt my manifold, but I circles the area and you can see a portion of the holes within the manifold. Its not IAC, as those holes are little and within the actual runners. The main feed for the IAC is up front.
07-24-2010, 06:30 AM
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The PCV system is an intentional vacuum leak. But if you have the system hooked up the way the factory designed it, it is pulling in air from the throttle body that has been filtered, and accounted for by the MAF sensor (unless you have a 93.... but you don't have a signature, so we have no idea if that's the case).
07-24-2010, 01:06 PM
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The PCV system is an intentional vacuum leak. But if you have the system hooked up the way the factory designed it, it is pulling in air from the throttle body that has been filtered, and accounted for by the MAF sensor (unless you have a 93.... but you don't have a signature, so we have no idea if that's the case).
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