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Re-calibrating gas guage

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Old 05-29-2003, 07:29 AM
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Default Re-calibrating gas guage

My gas guage has been off lately.

I usually get about 280 miles out of a full tank and lately the guage has been at empty and the low fuel light on at around 230 miles. First I thought something was effecting my gas mileage. But when I went to fill up, the tank took only 13.6 gallons, rather than the 14.5 that it takes when empty.

Is there a way to check what the sensor is reading and/or re-calibrate it via VAG-COM?
Old 05-29-2003, 07:49 AM
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Default Not sure about recalibrating. I think you have the same problem I am - it's the fuel gauge sender

I'm getting less miles per tank but when I go to fill up when empty, it only takes 10-12 gallons. Even after filling up, the gauge never goes all the way to full (about 3/4 of the way between 3/4 & F) but stays there for quite some time. The last 1/2 tank of gas seems to go really quickly to empty.

I think I still have 5-6 gallons when it shows near empty.

I spoke to the service rep about this & he said it is most likely the fuel sender. My car goes into the dealer on Monday.
Old 05-29-2003, 07:55 AM
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Default Guess i'll give the dealer a call also

Thanks for the information.
Old 05-29-2003, 10:48 AM
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Default I've got the same deal.

Car thinks it is empty when there is 1/3 of a tank left. I have been using the tripometer instead of the fuel gauge until I get it in for normal service. It is kind of fun just imagine you are driving a Shelby Cobra with a fuel cell and that is the only way to meter your gas.
Old 05-29-2003, 10:51 AM
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Default theres also a post floating around about the sending unit wiring and a DIY fix...

search for "sending unit" it might pop up.
Old 05-29-2003, 10:58 AM
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Default aha. here you go

<ul><li><a href="http://www.robsaudiworld.com/fuelrepair.htm">http://www.robsaudiworld.com/fuelrepair.htm</a</li></ul>
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