Hi there,i had the same fault codes come up on a mondeo tddi,the p0335 was the timing chain had stretched,causing tdc sensor and pump to be out of synch bringing up fault code,and the other codes were the high pressure fuel pump was faulty intermittently cutting out,sent pump away to be tested.remove the wiring harness from the pump to the multiblock and have a good look at it before going any further due to these having issues with chafing bu the pas pump if the same as mondeo,and change fuel filter,hope this helps lee