1970 2002tii Gas Gauge Stays At Full

1970 BMW
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ATTPHONEMAN
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The needle stays at full. I bought a new sending unit and it still reads full at all positions. When I disconnect the tan sending wire, it goes to empty (like it's supposed to). When I hook up a new VDO gauge, it reads 1/2 at empty and OVERFULL at the full position.

Is there a voltage limiter or regulator which lowers the voltage (or amperage) to the gauge that is shorted across?

Or is there another problem?
Oct 13, 2007 at 2:19 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
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  • ASE Certified Mechanic
I'll start at the voltage limiter
Oct 13, 2007 at 3:39 PM
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DOCHAGERTY
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  • ASE Certified Mechanic
The 2002 problem you describe here will most likely require replacement of the instrument cluster. Seek out a salvage shop that does `02's (double 02 salvage or La Jolla Independent)
Nov 17, 2007 at 10:28 AM
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