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Morning Everyone, Pulled this code last nite, (P1247) Secondary circuit failure on fuel pump, O.K. What the heck is that?
I have no idea, the truck will start but runs extremly rough,
2000 F-350 Diesel
Superchips Programmer
Yep, I'm an idiot!! Code P1247 is not a fuel pump issue, its a turbo-boost issue.
Would a bad Vss Sensor be causing this code and I also pulled a P0783, last night but I thought the two were unrelated but now maybe not.. Any ideas??