I went out to it, started it up, praised the lord it worked, something else broke, swore a lot, locked it, swore some more, made a coffee and now pretending it doesn't exist.

Cheers Cheers, starting to look like it may be the tank mounted pump assembly. Filled up yesterday, sat for 16 hours and no air in the line and fired up straight away. Will keep an eye on it for the next few days though. Just need to see if there's any readings in the dash data showing the...