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On 6 May 2004 at 9:51, Jacob Schroeder wrote: > >Check the hose to the pressure sensor, and make sure it is attached on both > >ends. > > I was talking about the hose to the pressure sensor. When I pull this off, > the car seems to idle correctly, and I do notice quite a little vacuum > created by the pressure sensor when I remove the hose from the top of the > AID. AID, do you mean IAD (Intake Air Distributor)? I guess that some 72s got the Pressure Sensor hose attached to the top of the IAD. When you remove the pressure sensor hose there should be no vacuum coming from the sensor side, but quite a bit coming from the IAD. At any rate, removing this hose should make the engine suddenly run very rich, so your observation is confusing. It make me wonder if your problem is that it's too lean most of the time. Could your fuel filter be clogged? You might want to check the fuel pressure. > Also, when it's swinging from a normal RPM down to the low > RPM range the generator and the brake warning lights come on. Is the low > voltage causing the erratic idle, or is the erratic idle causing the low > voltage. The low RPM causes the low voltage. The warning lights would be a normal signal that the system voltage has dropped quite low. This is normal any time your rpm drops below normal. -- Jim Adney jadney@vwtype3.org Madison, WI 53711-3054 USA ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org