kirk knighton
Samba Member
Joined: January 23, 2005
Posts: 282
Location: Seattle
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 Posted: Sun Jul 05, 2015 12:36 pm Post subject: Gas gauge eez kaput! |
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It flickered a few times before finally dropping to the bottom. It's NOT the fuse, so I'm wondering if it's the little thing mounted on the back of the gauge/clock or if it is the sender mounted in the gas tank.
Meanwhile I continue to use the trip-meter to keep track of my gas level - always reliable. And it's what I've done with my motorcycle forever. |
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Kharon8
Samba Member
Joined: March 05, 2011
Posts: 375
Location: Espoo, Finland
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| Posted: Mon Jul 06, 2015 5:54 am Post subject: |
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Sudden death is often a contact problem but you can check the sensor with ohm & volt meter.
Check also that
1) The gauge is getting 12V (Bottom 2 connectors are for fuel gauge, +12V and sensor. Sensor is grounded.)
2) The sensor has some reasonable resistance (0=full tank) and less than 1k ohm, all the way to the gauge (measure at gauge end)
3) if 2) doesn't happen, try again from sensor end: if still nothing (infinite resistance) the sensor is bad or disconnected so
4) Check sensor ground contact.
Option 2:
Feed variable voltage directly to gauge: It should show full with 12V and 3/4 full with something like 3 volts. (At least the one I've on my hand, does that.)
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Kharon -- '62 typ1, '63 typ14, '61 typ21, '65 typ34, '74 412, '75 typ26
FVWA.fi support group. |
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