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Power Strokes
6.7 Aftermarket
P1291
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[QUOTE="mattmal9, post: 1093436, member: 12811"] I'm no mechanic by any means but I found this: "Some F-Super Duty vehicles equipped with a 6.7L engine built on or before 5/18/2011 may experience diagnostic trouble code (DTC) P1291 and/or P1292 due to an internally shorted fuel injector. This concern may be caused by gelled diesel fuel restricting the fuel injector return hose. There is a new fuel injector return hose available which will reduce the occurrence of shorted injectors due to fuel gelling." Idk if its cold where you are, but have you looked into the return hose? Maybe its clogged or restricted somehow? Hope this helps somehow. [/QUOTE]
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