Crank but no fire first key turn, starts right up second key turn?

[heinzboehmer]

Question about check valve: this is a part of the fuel pump assembly, yes? If I've recently replaced my whole fuel pump assembly, I should be able to rule out the check valve entirely, yes?? Is there a chance that my check valve on my new pump just failed really early??? It would be really nice if this was the answer to my problem.

Yeah it's part of the fuel pump. Did you swap it out for a new OE pump or did you go aftermarket?

[ATB88]

Yeah it's part of the fuel pump. Did you swap it out for a new OE pump or did you go aftermarket?

OE BMW, entire assembly.

[heinzboehmer]

OE BMW, entire assembly.

Ah, I was going to suggest you check (and replace) the submersible convoluted tubing if you had gone aftermarket, but that shouldn't be a problem with a whole new assembly.

[Cbouts]

Solution here -> https://www.ecstuning.com/b-genuine-...p/16142229684/