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Russ Wolfe russw@classicvw.org http://www.classicvw.org/ ----- Original Message ----- From: "dubdriver" <reeves32@home.com> To: "Russ Wolfe" <russella@prairieinet.net> Sent: Friday, April 20, 2001 8:20 PM Subject: Re: [T3] excessvie fuel consumption > I have both arcing brushes and a 100w amp. I'll take some emery to the > armature and see what happens. How does this affect the FI? > ----- Original Message ----- > From: "Russ Wolfe" <russella@prairieinet.net> > To: "dubdriver" <reeves32@home.com> > Sent: Friday, April 20, 2001 7:19 PM > Subject: Re: [T3] excessvie fuel consumption > > > > > > Subject: Re: [T3] excessvie fuel consumption > > > > > > > > > > Okay, grounding the air pressure sensor has my mileage up to 18.5 around > > > town. If my memory serves me, I used to get 23-24 around town and 27-29 > > on > > > the highway. So I'm still down 5-6mpg. > > > > > If grounding the sensor helped, check for electrical noise. This ground > lug > > was added back in '72/'73 to help with RFI (radio frequency interference). > > This was about the time that CB radios became popular. The D-jetronic fuel > > injection was VERY succeptable to this. VW added the lug to eliminate/help > > the problem. A 100 watt CB amplifier would shut the early D-jetronic FI > > system down. The RF would get in via the pressure sensor. > > Check for worn generator brushes, (arching) sticking/noisey voltage > > regulator, loose high current connections (bad wire conections at > > generator/voltage regulator. > > You don't have a big stereo amp in the car do you?? > > > > Russ Wolfe > > russw@classicvw.org > > http://www.classicvw.org/ > > > > > > ------------------------------------------------------------------- List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org