E46 is being a headache once again (I hate this car )its parked about a mile from the house but at least its locked away securely
Before I even start I know this is a how long is piece of string question

It wouldn't start when my missus came out to it so I drove down thinking it was the battery so I jumped it but to no avail iv eleminated that its the battery as theres plenty of juice in it

It will start for roughly a second then just dies even if I try to rev it it does nothing and just continues to conk out

Any ideas ? Possibly sensor ?

Iv no diagnostics at the moment either for the first time in 3 yrs :@