Immobiliser

[kentiiboii]

Ok this all sounds a bit ott, breaking the car. You've only changed the clutch it's either an unrelated fault or something logical is broken based on what you've disturbed.

What happens when you get in the car, just the normal dash lights and it will crank but not start? Is it turning over normal speed or is it lethargic? Have you tried a jump start on the car? Critically, does the LP pump prime? (can you hear it)

Have you attempted to monitor rail pressure using the ELM tool? Low rail pressure achieved on cranking will prevent starting iirc. Crank sensor was swapped out for new as i recall but what about the cam, is there a friend nearby whose sensor you can borrow? Was the crank sensor new or used and known working? Fuel Pressure regulator behaving? rail pressure sensor reading?

Have you checked the double relay behind the battery? Is the ECU responding to the ELM tool? Is your throttle sensor plug clean and plugged in? Have you back-tracked your steps to strip all of the gubbins from above the gearbox (ie battery) to see if you have disturbed a vital earth? The starter may be cranking but there are earths on the inner wing iirc which may have been disturbed. Have you been through both fuseboxes to give them all a clean bill of health?

It has to be something simple, electrical things don't just 'break' without telling you (by failing or by fault code) but a physical issue will normally. I've got a whole HDi engine in the garage if you need anything specific but i'm not home for a fortnight. I'd still say it was a loom issue, as at the end of the day cranking only means your starter is getting 12V, starting relies on everything else getting 12V.

All normal lights come on. It's turns over at normal speed. I can hear it priming.
Havnt tested rail pressure as I don't know how still new to elm. Crank sensor is new. Dont know where cam
Sensor is though. Elm does connect to the ecu. I think I've checked the double relay if you mean the one for the glow plugs.
I think next thing is to track what we did with gear box. I know it's something stupid it's just finding it. Breaking is the last thing but nothing wrong in just pricing it up