bf ute factory lpg starting problems

[muzzgas 0]

Hey Guys, I got a bf ute dedicated lpg, have a bit of trouble starting when cold, sometimes gives a splutter or even a backfire, drives good, runs well. After 30/45 mins driving & motor is hot, I turn the car off go into shop for a few mins then go to restart the ute and nothing, turn the key & not even a crank this can happen 4/6/10 times then eventually it will start to crank then start!  So Far!  So I need some help/advice/suggestions plz? Muzz .   

[Drew442 67]

Step one is always put the scanner on and check for codes.

The idle/start fuel circuit is essentially a slow leak from the mixer too. Check your vapor lines for leaks using your nose. Energise the lock off for a few seconds with a jumper wire to make it flow.

Make sure the plugs are good.

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