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#1
09-03-2012, 05:48 PM
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Can someone explain to me how the vac transducers work?
Are they based on voltage modification or? I've got 12v in and subpar vac on the out side...
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http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42 
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#2
09-04-2012, 04:15 AM
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The vacuum transducer on a 1985 W123?
They take high vacuum, modulated vacuum from the VCV and turbo boost. The turbo boost determines the amount of leakage. The output is for the transmission. It is all done by valves. There is a screw to adjust it and it might need cleaning after a while. There is no voltage, only to the switchover valve (high/low vacuum depending on engine temperature).
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#3
09-04-2012, 07:23 AM
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0m60x p2 flap transducer in particular. In 92 they replaced the p2 flap transducer with a solenoid. I wonder if it is possible to simply go with that.
__________________
http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42
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#4
09-05-2012, 11:10 AM
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All the ones I've seen have a metal piston inside with covers / uncovers the vacuum port. If it gets full of crap the piston will stick.
-J
__________________
1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket  Tesla Model 3. 205,000 miles. Been to 48 states! Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels. 2014 Cadillac ELR 2013 Fiat 500E.
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