Fuel Code P01901

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Something is broken or acting wrong in the fuel injection system. I doubt it is the fuel rail- probably an injector or fuel pump.

I was missing an o ring on my new intake when I re-installed the fuel rail. I learned the hard way when I fired the car up and it ran like :poo:. The o-ring was still attached to the previous intake manifold (luckily), so I just had to put it back on the fuel rail.

My point is even then, it didn't throw any codes. So I think it has something to do with the injectors or pump since it is being so specific. Is it running funny?