1992 Mazda b2200 Gas Guage error

1992 MAZDA B2200
105,000 MILES • 4 CYL • 2WD • MANUAL
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SCOTTY41B
  • MEMBER
  • 1 POST
When I fill the tank full, the gauge only shows three quarters of a tank. Could this be a constant voltage regulator, and how do I locate it?
Sep 4, 2010 at 9:50 AM
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BLUELIGHTNIN6
  • CAR REPAIR CONTRIBUTOR
  • 16,542 POSTS
probably faulty sending unit in tank. will need to disconnect sending unit connector and test with ohmmeter. if tank is half full than ohm should be 29 - 37. almost empty it should be 103-117. almost full should be 1-5. if any reading is wrong than sending unit needs replaced.
Sep 4, 2010 at 12:47 PM
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