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Mystery (to me) device 200

uid 2796's pic
posted by  bulletproof on  Sat May 17 04:34 CST 2003
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last visit: Fri Oct 24 12:02 CST 2014
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What is the device in the highlighted area of the photo below? The engine is a B21F from a '79 242 (my parts car for the '80). The device is directly underneath the intake manifold, which is seen at the top of the frame, and is in-line with the hose that runs between the aux air valve and the idle control.
I ask because my '80 DL does not have this device. Just the hose connecting aux air valve to the idle control. And the vacuum connection on the '80 idle control is plugged with a screw. Also on the '80 there is another plug on top of the intake manifold where the '79 has a vacuum fitting that I'm guessing was connected to the mystery device. The connection on the device is hard to see. It's pointing stright at the camera lens.
I'm just wondering if Volvo changed something between '79 and '80 or if someone has modified the '80 not to use this item? Do I need this item for the '80?
--
1980 240 DL







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New Mystery (to me) device [200]
posted by  bulletproof subscriber  on Sat May 17 04:34 CST 2003 >


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