Failure in my sprinter 313cdi,

Greetings Friends, I have a somewhat strange or complicated problem for me, I tell you that I have changed the high pump of my sprinter 313, CDI, and at the same time take out the number one injector, to change the copper seal, mount everything again and turn on the engine without problems after a few minutes turns on an EDC failure, on the board and the engine goes out, I thought it was air in the system. Principle Check the new water trap filters, OK I do not detect anything abnormal. I turn on the engine again and the same thing happens, the EDC fault goes out and the instrument tab

This weird means, air will not enter by lip and that something is not well armed in the pump, because for what you say from the injector if you release it, then or it lacks bleeding or enters air I believe.