Possible FI problem

Ben Drinkin said

Thanks. I'll make that my first inspection. I have no experience with forklift engines, but it is just a gas engine. Can't see paying these guys 100 bucks an hour to guess.. i can do that just fine.. and I'm guessing i can source internet parts for a fraction of what they're sticking me for..

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Yes, with no codes it can be difficult, and I am no a FI guru either. But first reaction was a difference between cold running and warmed running, so check sensor to see what the output is between cold/warm. Could also be restricted fuel filter, giving enough fuel when warm, but not enough when cold and needing to run richer