What about spark? Sounds like the hall effect sensor not reading all the time or the control module going soft. The engine will run without the sensor once it has started but will not start without. Loose wires or bad ecm are the most common source.
My 2007 does the same thing. No solution found yet. Please help. We put fuel system cleaner into the last tank of gas. The problem is still happening. The check engine light is NOT illuminated. It tries and tries to start, turning over several times, but it seems it is not getting enough gas to maintain the engine. Then, after it tries and tries it will either stall, or it will all of a sudden rev (on it's own) and run fine. I can drive it start/stop for days without having the problem again.
Check fuel pump relay or make sure it is making good contact, you might have to slightly bend prongs
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