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Throttle body production variances
#1

I need some clarification if anyone is willing <img src="/forum/images/smilies/968/wink.png" class="smilie" alt="" />

I have the intake mani and such off the car this winter. I was cleaning the throttle body and notice a 90 degree spigot on the back side the I don't remember removing a vaccuum hose from; it appears unused as it's greenish. PET doesn't show the spigot but shows another one on the side that I don't have <img src="/forum/images/smilies/968/wacko.png" class="smilie" alt="" /> There is a hole on the inside of the throttle body that appears to align with the unused connection. I tried to blow but my lips are too big <img src="/forum/images/smilies/968/smile.png" class="smilie" alt="" />

Thoughts?
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#2

yup - it's ported vacuum and goes to the air/oil separator



warning! do NOT connect a regular vacuum hose to the AOS. it requires the tiny hard plastic line
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#3

Ignore Flash, he has been thinking about his AOS for way to long. That vacuum line goes to the valve behind the strut tower, which feeds the vacuum reservoir.
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Current:
2016 Cayman S
Former:
94 968 Cab 6 Spd. Black/Cashmere D1R SC
86.5 928 Garnet Red Metallic
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#4

That 90 degree fitting on the top is routed to a vacuum valve that opens the flow of air from the charcoal cannister on my car. The air/oil seperator line on my car is activated by a vacuum line that attaches to the intake manifold near the firewall.
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#5

lol - could be - now i get to go back and look
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#6

Thanks for the info. I swear I didn't remove any line from that fitting but I guess I must have <img src="/forum/images/smilies/968/wacko.png" class="smilie" alt="" />
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