Anybody got any ideas on why an iveco 2.3 16v common rail diesel. The problem is there is no injector pulse on crank. I have had the high pressure pump checked and also the injectors by a specialist. The low pressure pump seems to be fine. No fault codes of any use either. Also changed crank and cam sensors no difference. If easy start is used it will start and run fine?? Please any ideas as it's driving me mad.