P120F Diagnostic Trouble Code Discussion for October 2017
Fpr excessive variation
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| Help Request | Posted | |
| 2008 Ford F-450 Super Duty XL 6.4L No Start VIN: 1FDXW47R28 P120F: Fpr excessive variation. I have an intermittent no start but cranks over. Replaced both fuel filters and the primary filter on the frame rail was very plugged. Replaced the fuel rail pressure sensor. Electric low pressure pump works fine. Seems to not start when hot more than cold sta... |
October 05, 2017 |
