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ELECTRIC FUEL TRANSFER PUMP DIAGNOSTIC

  • US 20090306873A1
  • Filed: 12/12/2008
  • Published: 12/10/2009
  • Est. Priority Date: 06/04/2008
  • Status: Active Grant
First Claim
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1. An engine control system having primary and secondary fuel tanks, comprising:

  • a fuel monitoring module that determines a measured fuel level of the secondary fuel tank based on a fuel level signal received from a fuel level sensor when a fuel transfer pump (TP) is on for greater than a predetermined time period required for the fuel TP to reduce the measured fuel level from a predetermined fuel level to below the predetermined fuel level; and

    a TP diagnostic module that diagnoses a condition of the fuel TP based on the measured fuel level.

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