206 1.4 hdi 2003 X-Line I got in my car in the morning, it didn't start, the battery was dead, I made a boost and started it, so that the battery would be full, it didn't work again after 1 hour, this time I hit it, half an hour later, it didn't work again, I was on the road 4 times, finally I went to the battery, measured the battery and said it's dead. I bought a new battery, I plugged it in, the car was running very clean, but this time the engine light was on, I used it until the evening, there is nothing in the traction, the car passes 3000 rpm only when getting up in 1st gear, something like stuttering, the car pulls back when it accelerates, it corrects itself and while driving on bumpy roads, mileage, rev and temperature indicator goes to zero, then the engine light goes out, what could be the problem?