what could make mileage and trip mileage and fuel gauge not work

1991 FORD THUNDERBIRD
150,000 MILES
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MIRCALE
  • MEMBER
  • 8 POSTS
my mileage counter and trip counter havent worked in a year now my fuel gauge stays on empty replaced cluster and fuel pump assembly still the same
Feb 24, 2012 at 2:58 PM
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CADIEMAN
  • ✓Experienced Mechanic
  • 3,544 POSTS
these are colmputed in pcm or fuel data contol module.
Feb 24, 2012 at 4:09 PM
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