Date: Wed, 7 Aug 2002 23:28:25 -0700
From: "chrisnew" <chrisnewnopsamorld.com>
Subject: Re: 94 9000 Aero boost problems


The APC valve has 2 solenoids inside separated by a diaphragm. The centre electrical pin is common to both. Test for continuity between this and each pin on either side, in turn. One of the coils is probably broken, leading to the symptoms you describe. Chris "scaredofthedark" <scarednopsam.net> wrote in message news:i4Y39.67003$yc3.2355158nopsam.nnrp.aus1.giganews.com... > Bought the valve, installed it in 3 minutes and boost is back to normal. > > Chris > > "scaredofthedark" <scarednopsam.net> wrote in message > news:28D39.113069$nm.4104342nopsam.nnrp.aus1.giganews.com... > > I'm hoping someone can give me some difinitive information here. > > > > I've got a 94 9000 Aero 5 spd. Under load the boost is oscillating in and > > out of the red. I'm leaning toward a faulty APC Valve/Soleniod, but would > > like to get some more info before I drop $200 on one. > > > > I was told that I can check the valve by checking continuity between the > > center pin on the valve to either of the outside pins, and that I should > > obtain a reading of 350 Ohms. Is this accurate? If so that's where the > > problem lies since I am reading 3 Ohms. > > > > Should the valve click by setting the ingnition to run? > > > > If I wanted to funx check the valve with power applied, is the 12V on the > > center and GND on the outsides or vice versa? > > > > Thanx in advance, > > Chris > > > > > >

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