2006 Ford F-250 Ford 6.0

JJ ZIMMERMAN

MEMBER
2006 FORD F-250
V8
4WD
AUTOMATIC
17,000 MILES

Its a 2006 ford f250 6.0 diesel. It just stoped running all at once. I changed the cam, crank and injector sensors.I also changed both fuel filters 2. They did not 2 help any at all. I used a trouble code reader and it gave me these codes PO231 PO261. I was wondering if you could help me. I think you for all your help

1 Reply

DAVE H

MECHANIC
13,383 POSTS

Check the Inertia Fuel Shutoff (IFS) Switch. At right kick panel. Fuel pump fuse and relay. Do you hear the pump come on for a few seconds when you first turn the key to ON position?

P0231 - FUEL PUMP SECONDARY CIRCUIT LOW
Description: The powertrain control module (PCM) monitors the fuel pump monitor (FPM) circuit. The test fails if the PCM commands the fuel pump ON and B+ voltage is not detected on the FPM circuit.
Possible Causes: Open B+ circuit to the fuel pump relay
Open FP PWR circuit between the fuel pump relay and its connection to the FPM circuit
Damaged fuel pump relay

Diagnostic Aids: During the key on engine off (KOEO) self-test, the PCM commands the fuel pump ON so this test can be carried out.
Application Key On Engine Off Key On Engine Running Continuous Memory
AllGO to Pinpoint Test KA