I have a recurring engine stalling problem which I can't figure out. It always happens after a long drive of about 2 hours or more. After I park the car for a long while, say about an hour, and I drive off again, I will run less than a kilometer and the engine will suddenly stall. It won't re-start unless I turn off the SGI, and run on gasoline. Usually, it takes at least a half day before I can turn on the LPG again.
At first I suspected a clogged fuel line. But I noticed that the stalling only happens under the very same circumstances. My typical daily drives are trouble-free.
Anyone else experiencing this? Any guesses?