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P1237 Diagnostic Trouble Code Discussion for August 2005

Fuel Pump Secondary Circuit Malfunction


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Trouble Ticket Help Requests for DTC P1237
Help Request Posted
2000 Ford Taurus SE 2-Valve 3.0L Poor Fuel Economy, MIL Lamp on VIN: 1FAFP5528Y
P1237: Fuel pump secondary circuit. Cutomer came in with Mil light on (code P1237). Did not have time so I cleared it but it soon reset. Customer said it mileage went from 29 MPG to about 19 MPG. Done voltage drop on FPDM. Input voltage is 13.72V and VD on pos. is .586. On the ground the voltage...
August 01, 2005