i am really hoping it wasnt the hoses conected wrongly...
It would not be that
Of the two hoses, one is the scupper drain (drains overfilled fuel or rain-water that collects in the filler neck) and the other is the vent (which return air to the tank to make up for used fuel);
the vent hose is connected to a roll-over valve that closes if bike is on its side, so fuel does not spill from that line;
even if reversed it would not cause an issue other than, if fuel overfill (or collected water) went down the hose into the roll-over valve, it would not pass in that direction. On the other line the vent would simply be open anyway.
The other scenario with wrong connection would possibly be the vent hose/valve connected reversed; but even in that scenario it would not cut immediately; a vacuum would occur in the tank as no make-up air could flow into the head-space; but this would take quite a bit of running time to cause any issue.
I believe the issues were all fuel delivery related
1. The pump itself along with the fuel filter
2: that created 'some' pressure that was enough to have injectors flow,but at least one injector had reduced flow and additionally the fuel rail was full of crap;
3. After this engine would fire but not run cleanly - The fuel pressure was inadequate, caused by the deteriorated hoses created pressure leaks - after these hoses were replaced/connection secure pressure returned which then geerated the correct fuel mass to run.
Red Herrings: TPS; Map; MAP sensor; Fuel Tank Drain/Vent hoses