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P2291 Diagnostic Trouble Code Discussion for October 2010

Injector Control Pressure Too Low - Engine Cranking

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Trouble Ticket Help Requests for DTC P2291
Help Request Posted
2006 Ford F-350 Super Duty Lariat 6.0L Hard Start VIN: 1FTWX31P26
When through flow chart and it says to unplug Injector Control Pressure Sensor and if engine starts, it's a bad sensor. I unplugged sensor and it starts right up. Plug sensor back in and just cranks and cranks but will not start. Will eventually start if you c...
October 07, 2010
2006 Ford F-450 Super Duty XL 6.0L No Start VIN: 1FDXW46P16
... soak. i found a new calibration that is supposed to cure the 8 injector circuit low faults and the p0611 fuel injector control module circuit fault. it does not address the 2291, injector control pressure too low during engine cranking. i have a hunch the ...
October 16, 2010