Bradmann71

Need help so I did my clutch and followed by this was poor starting issues.. read codes camshaft sensor so changed that... still no joy then went on to get it checked elsewhere found 15 wires corroded with 6 of them been snapped I obviously disturbed the loom dropping my box... these got repaired started great on the dot following morning nothing glow plug light flashing was a code for crankshaft sensor no signal however unplug and replug the crankshaft sensor and it would fire up code deleted stayed off for a good couple of days and then returned starting fine most times but other times struggle or then have to unplug and replug to start... so today I decided to tackle changing the sensor... all well and good build back up went to fire and nothing now code 4141 this time signal implausible... so unplug replug with codes deleted nothing... checked wires and have 2.4v across posi and signal into plug check on back or ecu with pin wire 102 and 110 same there goes up slightly on crank... my question is bad ecu? Or crankshaft reluctor ring? car is a 1.9v pd130 vrs asz engine