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Registered
Join Date: Nov 2003
Location: South West Florida
Posts: 2,508
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Another 3.2 motronic question
I'm still not sure on what to do with this nipple coming out of the back of the throttle body. One side has a line that loops back. Where does the other side connect to? I currently just ran a hose over it and plugged it.
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2000 Boxster S (gone) 1972 911s Targa (sold) 1971 911t coupe roller (sold) 1973 911t coupe / 3.2 (sold) Gruppe B #057 |
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01-25-2009, 04:43 AM
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Friend of Warren
Join Date: Oct 2000
Location: Lincoln, NE
Posts: 16,493
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You no like me GI? I posted a picture for you showing the vacuum lines in the last thread where you asked this question. Let me post a couple here.
 
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Kurt V No more Porsches, but a revolving number of motorcycles. |
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01-25-2009, 06:06 AM
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Registered
Join Date: Nov 2003
Location: South West Florida
Posts: 2,508
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There are two lines comming out of the back of that thing. The first pic, I have that line taken care off. Your second pic showes the other line trailing off next to the heat shroud. Where did it go?
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2000 Boxster S (gone) 1972 911s Targa (sold) 1971 911t coupe roller (sold) 1973 911t coupe / 3.2 (sold) Gruppe B #057 |
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01-25-2009, 06:53 AM
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EMT/TechRescue Instructor
Join Date: Mar 2007
Location: Moncks Corner, SC
Posts: 342
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I have an '86. That port is connected to the air valve shown in the picture. The valve is right next to the oil tank. Let me know if you need more help with routing the lines.
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01-25-2009, 07:48 PM
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NOS911
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Does anyone know what the air valve does?
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My Pelican Page |
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04-28-2009, 12:35 PM
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heiliges blechle!
Join Date: Aug 2005
Location: Travel a lot
Posts: 425
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I *think* I know how it works, not sure on the 'why' part... I took note of that part when I found the vacuum line laying along the firewall. I hooked it up and then the air valve started singing (a bad one I guess)...
So the thermo valve on the throttle body ports vacuum to the air valve when the engine is cold. The air valve opens up and connects a circuit from the oil tank (crank case fumes?) through a PCV valve to the throttle body. It looks like a PCV valve that only works when the engine is cold... Anyone else have some insight?
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'84 M491 '07 Silverado '75 Suzuki GT550 2-stroke triple '02 Aprilia Mille R '07 Ducati S4Rs '08 Night Train |
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04-28-2009, 01:06 PM
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Registered
Join Date: Sep 2004
Posts: 3,650
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That's a good question. I too have an '86 engine but I'm using a '77 oil tank. I simply have that port blocked off.
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04-29-2009, 06:35 AM
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Essin's 911
