ohm reading on fuel sender/gauge - General - VWDiesel.net The IDI, TDI, and mTDI source.

• ohm reading on fuel sender/gauge by evangelos on 08 Nov, 2007 16:36
• hello,
  
  does anyone know of the ohm range for the fuel sender/gauge on the 96 jetta.
  
  apparently its written behind the console; if anyone has a console that is removed can you please take a look PLEASE.
  
  Evan
• #1 by Vincent Waldon on 08 Nov, 2007 19:30
• Sorry dude.. my console is out and there's nothing written anywhere... but I'm very interested if someone else knows the answer.
  
  The Bentley always says silly things like "Setting #3 on special tool 12345" which is just a variable resistor... tell us the darn values !!!!
  
  
  Vince
• #2 by Ziptar on 09 Nov, 2007 01:47
• Mine is out too and there is no writing on the console or anything behind it, I'd test mine for you but, I already put the tank back in the car.
• #3 by evangelos on 09 Nov, 2007 05:21
• its starting to get cold here in montreal so before i go out and remove the fuel sender; does anyone know if it would be written on the sender itself?
  
  thanks
• #4 by Vincent Waldon on 09 Nov, 2007 08:05
• I don't believe it is written anywhere actually... one of the mysteries of the beast.
• #5 by Jettadoor on 09 Nov, 2007 11:12
• Found this on the bentley forum from a couple of years ago
  
  

  Quote

  I have a 96 Jetta GL, 2.0, (ABA?) GAS.
  
  My tank was at 3/8 this morning, and I measured across pins 2 & 3 right at the harness for the gas tank and I got 110 ohms. I went and filled up the car, and I read 36 ohms.
  Note: I'm measuring with the connector disconnected, and on the tank side.
  
  
  My gauge works great, so hopefully you'll get something in the same range.
  3/8 = 110 ohms
  full = 36 ohms
  

  
  
  It's for a gas model however, don't know if they're the same values as yours.
  
  I remember reading a post or a link on Bentley about building that special tool for senders and gauges and it gives you all the resistance values. It was on the A2 forum. Couldn't find it quickly just now. You may have time to find it before you freeze over! If I can find it later i'll post it here.
• #6 by Jettadoor on 15 Nov, 2007 10:28
• Eventually found this;
  
  http://www.bentleypublishers.com/tech/vw/bentley.vw1301.testing.htm
  
  hope it will be helpful  
• #7 by Vincent Waldon on 15 Nov, 2007 21:26
• Dude... fantastic.... one of the VW Rosetta stones !!!
  
  
  Thanks muchly !!
  
  
  
  Vince
• #8 by Jettadoor on 16 Nov, 2007 02:58
• Glad to help  
  
  Unfortunately I couldn't find the post where someone made one of those tester thingamabobs with a few parts for a few bucks    
  
  evangelos, hope this is not too late to be of use to you!
• #9 by Vincent Waldon on 16 Nov, 2007 08:32
• Tis easy... a 100 ohm potentiometer from Radio Shack or the like and a reasonably accurate digital ohmmeter with a low scale (say 0-200 ohms) and you're good to go.
  
  You could be *really* fancy and put it in a box with a knob and alligator clips....  you could even calibrate the knob to the "VW 1301 settings" with the ohmmeter.   Sell it on eBay for half of the price for the special tool... be rich beyond your wildest dreams... buy more diesels.  ;-)
  
  
  Vince