08-21-2014, 04:00 PM
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Join Date: Oct 2012
Location: Chelmsford, Massachusetts
Posts: 4,373
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Mystery solved by HotZ28 over on the buick forum!
Quote:
Originally Posted by HotZ28
That is the Evaporative Emission Canister PURGE SOLENOID WITH 2 PORT VAC-2 blade terminal. IIRC, the 3.1L has a MAF sensor to measure intake air flow and does not have a MAP sensor. A typical MPFI engine will use one, or the other, but seldom both. The S/C 3.8L engine does use both MAP & MAF due to the fact that manifold pressure goes from vacuum to boost during acceleration.
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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco...  " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes
1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod
2 Samuel 12:13: " David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
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