Hello all looking for help. I have acquired a 2002 zetec a tdci with 99k on the clock. It's a Non runner. Problem is it won't start. New battery and will turn over but won't kick into life. Have detached fuel pipes from filter to the engine, no fuel getting to engine but is being returned. Even bypassing this an pouring straight from a funnel to ensure diesel is gettin to engine still nothing. Snap on diagnostic computer finds no faults. Although sometimes when turning ignition in dials sweep up then down. Engine management light stays on. No figures on dash board just dashes. Anyone give me a step for a hint?