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Registered Speed Offender
Join Date: Jan 2008
Location: Houston, TX
Posts: 205
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What is this part?
Hey group,
I have been taking apart the front of the engine to replace belts and water pump. I ran across this part, which had been disconnected by the PO and the two wires were laying beside it. It is located on the driver's side of the engine and is bolted to the airfilter box attachment plate on the back. I have a 1983 944 NA. Any idea what it is?  
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Crazy Horse ______________ 1989 930 |
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08-14-2009, 10:34 AM
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Proprietoristicly Refined
Join Date: Jul 2001
Location: ~Carefree Highway~
Posts: 5,833
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Is it connected to the AOS oil fill tube at the bottom?
Creative vacuum plumbing. 
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08-14-2009, 11:04 AM
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Back from Beyond
Join Date: Nov 2004
Location: Alberta, Canada
Posts: 2,697
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Idle switch/control valve. Cuts in when A/C turned on. The bolt in the top is a nice touch. The valve mounts at the back of the airbox and the bolt holes in its top are for (ta da!) mounting it.
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'88 944 Auto - project, kinda '87 944 Auto - died saving my wife '84 944 5SP - crushed under shop roof during snow storm All others GONE! |
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08-14-2009, 12:09 PM
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Registered Speed Offender
Join Date: Jan 2008
Location: Houston, TX
Posts: 205
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Any reason the PO disconnected it?
Any reason the PO disconnected it? Do you know what its purpose is?
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Crazy Horse ______________ 1989 930 |
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08-14-2009, 12:43 PM
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Registered
Join Date: Jul 2004
Location: Upstate New York
Posts: 3,271
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Quote:
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Good luck, George Beuselinck |
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08-14-2009, 02:00 PM
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Registered Speed Offender
Join Date: Jan 2008
Location: Houston, TX
Posts: 205
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Any reason the PO disconnected it?
Any reason the PO disconnected it? Do you know what its purpose is?
I know the bolt on top is to mount it as I am the one that just "unmounted" it.
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Crazy Horse ______________ 1989 930 |
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08-14-2009, 02:14 PM
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Registered
Join Date: Jul 2004
Location: Upstate New York
Posts: 3,271
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Idle switch/control valve. Cuts in when A/C turned on.
Boosts the idle speed to avoid speed dropping when the AC compressor kicks in. The PO probably disconnected it because he was a dreaded PO, after all.
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Good luck, George Beuselinck |
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08-14-2009, 02:19 PM
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