 VDO fuel gauge questions |
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| roundtwo |
 Mar 15 2023, 11:03 AM
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#1
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Member  Group: Members Posts: 321 Joined: 9-February 20 From: Petaluma, CA Member No.: 23,905 Region Association: Central California 
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OK, so I’ve scoured previous post about this topic and I’m now at this point.
-cleaning up some previous owner work - VDO fuel gauge part number V301030. Rated 0 to 90 ohms. - New stock sending unit putting out 36 ohms now as gas tank about 1/2 full. - all wires continuity tested and I’m sure i all hooked up correctly. Yes-grounds all checked. Problem- gauge reads full. -assumption the pin configuration on the sending unit plug is correct- see pic Fix? - install VDO gauge v301020. Range 10-73 ohms - Will this gauge work close enough with the stock sender? Or…. Do I need to replace the stock sending unit to match the gauge ohm range exactly? Thanks for the help   |
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| Root_Werks |
Mar 16 2023, 09:01 AM
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Village Idiot Group: Members Posts: 8,668 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest
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Believe the correct VDO gauge is 301 020 which isn't made. I found a NOS gauge a while back.
Went through this a couple of years ago: http://www.914world.com/bbs2/index.php?sho...=346657&hl= Reading through my old thread, I found a VDO 301-220 which works well. Run the 914 fairly low on fuel and it reads it. Fill the tank and it reads it. So pretty darn close to matching up with the sending unit. |
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| mmascari |
Mar 16 2023, 09:50 AM
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#3
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Member Group: Members Posts: 322 Joined: 1-September 14 From: Concord, CA Member No.: 17,850 Region Association: None |
QUOTE(Root_Werks @ Mar 16 2023, 08:01 AM)  Believe the correct VDO gauge is 301 020 which isn't made. I found a NOS gauge a while back. Went through this a couple of years ago: http://www.914world.com/bbs2/index.php?sho...=346657&hl= Reading through my old thread, I found a VDO 301-220 which works well. Run the 914 fairly low on fuel and it reads it. Fill the tank and it reads it. So pretty darn close to matching up with the sending unit. I also went though this recently, here are my notes: "here is the answer via VDO Support: Use VDO Part Number 301 020 with the OEM 914 fuel sender; (spec'd for Beetle O.E. sender or VDO 221012 sender): 73 - 10 Ohms, "Fuel" The reading will be off slightly but will not be noticeable North Hollywood Speedo 75ohms full, 5 ohms empty is pretty accurate Mine measured 3 ohms empty and 73 ohms full. Fuel gauge itself has two wires: Red/White: keyed power Green: to the sender The black wire goes to the low fuel lamp Sender has three wires: Green: gauge Brown: ground Black: low fuel light inside the gauge |
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Posts in this topic
roundtwo VDO fuel gauge questions Mar 15 2023, 11:03 AM
914Sixer 0-90 is the stock range. Mar 15 2023, 11:32 AM
roundtwo
0-90 is the stock range.
@914sixer
References ... Mar 15 2023, 04:29 PM datapace Also, keep in mind that a 0-90 ohm gauge will not ... Mar 16 2023, 08:32 AM roundtwo
Believe the correct VDO gauge is 301 020 which is... Mar 16 2023, 05:09 PM roundtwo @mmascari
Thanks so much. My suspicion was of al... Mar 16 2023, 04:59 PM roundtwo @[url=http://www.914world.com/bbs2/index.php?showu... Apr 11 2023, 10:24 AM mmascari
@[url=http://www.914world.com/bbs2/index.php?show... Apr 11 2023, 12:55 PM |
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