E-Gas BA Falcon Wont Start. E gas ba falcon wont start dropped a passenger off last evening and when i went out to do another jo

E-Gas BA Falcon wont start, dropped a passenger off last evening and when I went out to do another job, the engine will crank over but not fire.
Pulled off fuel hose to throttle body and can only smell a faint trace of LPG.
It was a very hot day in Cambridge, but there were no issues with idle etc.
Supect fuel is not getting to the throttle body.could be other things.
Any ideas here folks
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The two solenoids in the LPG unit give trouble, as well as the stepper motor sometimes get jammed if the engine has been running rich. I assume you definitely have fuel in the tank.

I assume its a factory LPG unit and not an aftermarket fitment/Dual gas Falcon.