Insignia 2014 2.0 diesel

[billy123]

Hello I have a 2.0 diesel insignia witch had a diesel leak at the hp pump ...replaced pump ...changed fuel filter was sucked in ..seen filings copper ...dropped tank cleaned out new fuel filter injectors fuel rail ...does the low pressure pump drop pressure ...start her up she cuts out no faulcodes flick key off and on she starts up again ..if I keep over 2k rpm stays going but below just stops any help plz