Stop at the first run

I have a problem with my car for the last week. When I first start the car, the cycle falls and stops. When the full cycle falls and stops, I press the gas but then it doesn't stop. But if I do not press the gas stop Then I press the starter back right away, take it right away, there is no problem, and when I run it during the day, it takes it at the first starter, but I don't understand why this stops (usually when the engine is cold) at the first starter. Why do you think the problem is caused by? >

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