Mondeo Tdci Problems

[themetcalfs]

Just bought a 54 Mondeo Ghia estate and within 2 days the dual mass failed so just had that done owch lol ,

But now under heavy excelleration the heater plug light flashes and it cuts out and we come to a stop it always starts again but not easily, after doing this a couple of times the engine management light comes on, ive had it plugged in and i get Cam sensor and a PO251 code

Any help would be great on the PO251

[Lee churchyard]

Injection pump fuel metering control

A cam rota injecter