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<x-charset iso-8859-1>On Wednesday 07 November 2001 14:39, Jim Adney wrote: > On 7 Nov 2001, at 9:46, jim wrote: > > The CSV ONLY works when it is cold enough AND the starter is > running, so it would not help your rough running problem. It only > serves to make the engine easier to start in cold weather. > > > Is there any way for me to test the EM Valve and/or the switch? I > > assume they were disconnected because either the valve or the switch > > were causing problems. Maybe it was running at all temperatures and > > making the car hard to start or ruining the fuel economy? > > If you put 12V across it it should click. There are many reasons for > them to get disconnected. The fact that someone cut off the wires > only means that they really didn't understand what they were > doing, or what the CSV really did. > I have disconnected every CSV on EVERY FI T-3 I have ever owned........... AND, I know what they do. My '71 doesn't even have a hose hooked to it. Unless you live in Alaska or upper Canada, they are not really needed if the engine is properly tuned. > > > While I'm at it, I figure I would test the engine temp sensors as > > well. Any tips for getting the 3/4 cylinder sensor out? Should the > > wire be removed first? My sensor is recessed and I cannot get an open > > end wrench down there (it's about an inch down and the hole isn't much > > wider than the sensor). I don't want to yank the wire if it shouldn't > > be removed. > > There is no reason to remove it. You can test it installed. The wire > is permanently attached at the sensor end, but ends in a connector > on the wire end. The connector plugs into a plastic body that is > part of the FI wiring harness. Just unplug it there and measure the > risistance from the sensor wire to engine ground. > > If you have to replace it, the tool of choice is a tube spanner, kind > of like the OE lug nut wrench, but with a 13mm opening. In a pinch, > you can use an open end wrench from below, sneaking it just > under the cooling tin "shelf" there. > You CAN get this sensor out with an open end wrench if needed from above the valve cover underneath the car. But, there was a special socket made that had a slot in the side to clear the wire. But as Jim says, you don't need to remove this sensor to test it. -- Russ Wolfe '71 Fastback AT '66 Fastback MT (IT RUNS) russw@classicvw.org http://www.classicvw.org ------------------------------------------------------------------- Unsubscribe? mailto:type3-request@vwtype3.org, Subject: unsubscribe </x-charset>