Still at the shop ,went ok for 20 Kay's then stalled again it's sucking air at the filter housing so replaced filter housing primer with a new one and now the GU has cracked the shits big time .
Seems to be sucking the fuel out of the filter leaving it dry ( empty) so bit of a mystery unless there's problems now (still) further back in the tank maybe .
Mechanic is going to leave it for a few hours restart it and try cracking the injector lines to get whatever air is in it out and go from there .
Just to add insult to injury Bursons who sent the filter housing and pump down from Sydney it went missing from Monday to yesterday grrrrrrr.