Smax complete breakdown

[AlfieAAN]

Driving into my estate and it began juddering as though it ran out of fuel followed by a bang and a whistling noise, wouldn’t start but sounds as though the engine is getting compression. The whistling came from the throttle body but I switched it with a brand new one but the car still didn’t start and I’m not sure on what the problem could be as I refuelled it with a Jerry can on diesel and fitted a new throttle body. Any ideas or suggestions would be much appreciated