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Help!

2015 mercedes e350 I just replaced the pcv valve and now when I start the car it has a long crank and fires up then immediately dies. I believe it has something to do with the HPFP. I had to remove it and while it was out I also spun the engine over by hand a…

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2015 mercedes e350 I just replaced the pcv valve and now when I start the car it has a long crank and fires up then immediately dies. I believe it has something to do with the HPFP. I had to remove it and while it was out I also spun the engine over by hand a little bit to get the camshaft in an easier position to slide the pump back on. I also have code P1CCF which is "High pressure could not be built up during engine start." PLEASE HELP

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u/fallout76sucks1OP

I did try that, ill try cracking the line manually, but I did just take it off and the line did have pressure.

u/PaymentItchy7619

Did you prime the fuel system after having the pump out? These HPFPs don't self bleed well at all, that code usually pops up when there's air trapped. Try cycling the ignition a bunch of times without starting it, like 10-15 cycles, let the in tank pump build pressure each time. If that doesn't work you might need to crack the line at the rail to bleed the air out manually