Just to update this as I forgot to.
Ended up replacing the ecu. Wireing to o2 sensors was bad so replaced wireing to them.
Just couldn't find anything specific to why would not start. Replaced ecu and it fixed it.
Serpriseing as ecu are normally reliable on theses.

Hi thank you. Car is dual fuel and has double vanos. The car will eventually run ! BUT have to crank it for ages. Fires a bit of the time getting longer each time till it eventually reaches full temp then runs . It will burn the starter out if continued to do so. It's the starting from cold and keep...

2001 320i petrol 2.2ltr 6 cylinder e46 Has lpg fitted. Car cranks over nicely just won't start. It try's to but won't. battery tested good. cam and crank signals there good. Replaced all 6 spark plugs new. Veryfied fuel injectionTested good. fuel pressure test good. The only code I pull of the car i...