Long story, 2.8 CRD 2007, New head gasket (correct size and properly torqued), eight valve lifters, new top end gasket set, new water pump, timing belt and pulleys, fitted at 90 degrees after TDC using camshaft and crankshaft locking pins. Now the sad part: First start ok ....... will not accelerate beyond 2500 rpm. Stripped it it all down again (except the head gasket), reassembled ............. same story The damn thing is in "Limp Mode" PNDR123 all have little green squares indicating this fact. The engine work was done in situ and I didn't touch the gearbox. ANY IDEAS ????