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Fuel gauge problems in 68 beetle
bluebaja - May 28th, 2007 at 08:34 PM

I have been trying to get the fuel gauge going in my brothers beetle and have found a diode or capacitor or resistor or SOMETHING that seems to be the problem.
Originally the wiring loop is such that power goes to this thing, then to the fuel gauge. The ground off the gauge goes to the sensor and the sensor is earthed. Like this the gauge always shows empty.
If i remove the thing and put the power wire straight to the gauge it always shows full.
This thing is obviously broken but i have now idea what to ask for at the auto sparky. Is it something to do with the previous owner changing from 6 to 12 volt????
Help!!! I'm sick of running out of fuel.
Here is the THING.
http://img241.imageshack.us/img241/224/thingyse2.jpg


bluebaja - May 28th, 2007 at 09:09 PM

Never mind.
Its a Fuel gauge Voltage stabilizer.
new part VW113 957 099A

Cheers


68AutoBug - May 28th, 2007 at 09:35 PM

Get one from the wreckers....

Lee


vw54 - May 29th, 2007 at 07:10 AM

You will only get a S/H one from a VW shop there not made new any longer

You may have to try several to get one that works.

Its nuthing to do with the conversion as they were built for 12volts and your still running 12 through the unit

If you have a 6 volt sender unit in the tank you may want to look out for a later 12volt sender as there will be a variance in the reading and you can not adjust that you will have to calibrate the fuel cauge by your fills at the service station know what level the tank is at and whats in the tank itself


bluebaja - May 30th, 2007 at 09:21 AM

For those that are interested Micks mototor in brisbane has them at $32 new.


vw54 - May 30th, 2007 at 01:12 PM

So do you have a 6V sender unit in the fuel tank

what brand are the gauge units ??? from mick


bluebaja - June 1st, 2007 at 09:32 AM

12 volt sender as far as i know, it is new.
The voltage regulators are standard stuff for 12volt cars and are sometines called a voltage resistor.
There are threads about 6-12volt stuff i think you need a ballist resistor or something.
HTH


greedy53 - June 2nd, 2007 at 07:07 PM

would someone go through the wireing system again
live to thing thing to pos on gauge earth from gaugr to sender pos and neg on sender to earth this correct?????


bluebaja - June 12th, 2007 at 02:12 PM

thought i had it fixed but sadly no.
Interesting result though, the gauge varies according to engine revs:crazy:
i may have just stumbled on a cheap tacho hehehe
looks like there is a short somewhere and the voltage regulator is sensitive enough to pick it up.
Any auto electricians on this forum?
oh and the sender ended up stuffed, it melted, not good since its in the tank!!!!