F50tlr

[campcrab]

I have a F50TLR and seem to be having trouble with fuel system. Had a fuel pump assembly replaced in November 2013 and fuel system and injectors checked. Ran good for awhile but now at times while running it will lose power like it is starving for fuel. Sometimes you might be lucky to get it to start and others it will not. At times if you pump the fuel line from tank you can get it to start, New tank and line from tank to engine. Please any ideas would be greatly appreciated. Thank you.

[99yam40]

have you tried monitoring the fuel pressures/vacuum to see if there are restrictions and which pressures are in spec and what is not?