OK, here is the breakdown of repairs I've had done and the fault which just won't die.
TL/DR - Everything has been replaced but van hates hot starts. Go
Initial problem -
Van refused to start either hot or cold (would start with a can of startyab*stard). Air discovered in low pressure side of fuel system
Decided because it a good truck (mostly) and it's needed for my job, I'd give the VM a freshen up, so....
Replaced
Fuel tank pick up and lines (all new)
Fuel filter (which I discovered was sucking air back in when engine stopped)
Fuel pump (complete new unit)
Injectors (4 x new with new washers and bots)
MAP sensor
Turbo (oh yeah, decided to sh!t itself after replacing everything else) Didn't budget for that.
Timing chain was a bit slack so figured I've done this much I may as well do this too)
Reversing light switch
Stater motor
2 x batteries
I believe everything has been "Learned", however this is the only thing I cannot 100% confirm.
When the engine is cold she fires up 1st crank. Good crank speed and no smoke upon startup
When the engine is hot it almost feels as though the batteries are dead. Starter is slow and at times feels like compression lockup. Wait a few seconds, crank again and it might spin normally but still not start (sounds flooded). Eventually starts again but can take 10-20 cranks to get going. If I let is cool (say 30 min) she fires up 1st crank.
Once running, the van drives like new and has zero issues.
Could "Learning" be the issue, all parts are OEM with the exception of the turbo (actuator version). Are the electronics in these vans hardware coded (i.e the same parts but different ID when the ECU looks at it)?
I've dropped over "$9k in this freshen up" and I feel like I want to throw it away now.
Help?