Nope, if you have a 6V gauge you can step it down with a simple ceramic resistor from 12V. It's not the cleanest way, but it works. That's the way I set them up. There are guys out there who swear that they can runa 6V gauge on 12V but it doesn't work. -----Original Message----- >From: ThatVWGuy@xxxxxxxxxxx >Sent: Mar 3, 2008 3:54 PM >To: tcb@xxxxxxxxxxxxx >Subject: [tcb] Re: Gas Gauge Question > >There are no relays in the gas gauge circuit. :( > > >Sent via BlackBerry by AT&T > >-----Original Message----- >From: "Home" <enriquepalacios@xxxxxxxxxxxxx> > >Date: Mon, 3 Mar 2008 12:01:15 >To:<tcb@xxxxxxxxxxxxx> >Subject: [tcb] Re: Gas Gauge Question > > >has all your wiring and electrical been checked for 12v you might have some 6v >wiring and relays, switches, etc. or it might be wired up wrong. > >rick >----- Original Message ----- >From: Dan <mailto:ThatVWGuy@xxxxxxxxxxx> >To: tcb@xxxxxxxxxxxxx <mailto:tcb@xxxxxxxxxxxxx> >Sent: Sunday, March 02, 2008 8:33 PM >Subject: [tcb] Gas Gauge Question > > >My gas gauge seems to work fine until I turn on my headlights. When I turn on >the lights the needle instantly pegs past full. Any ideas as to what is >wrong? > >-Dan >