Ford Mondeo wont start

Iv got a tdci that wont start by the key it will start with a squirt of easystart it will run untill the coil light comes on then cuts out.iv changed the fuel filter and a new injection pumpand had it on and of a snapon reader it allpoints to fuel problem iv checked every thing I can think of im now stuck at what to do next has anyone got any ideers.will be taking out injectors latter on and checking them but told by last orner that he had new ones fitted just last month so im at a loss what to do next.