irregular operation of the engine ...

Hi Friends ... My car 2005 model 307 hdi, I just bought the car ... My problem is, when I start and start the car in the morning, the engine is running unevenly, it is ok when I press the gas while idling, this problem disappears especially after moving and the engine is warming up. the situation is annoying, the master said the previous owner used a little bit of diesel, but I bought the vehicle, I consumed about 5 tanks of diesel, but each time the engine runs smoothly at first start, as if it coughs, or it runs smoothly in a fluctuating manner like a light bulb with low voltage. In the meantime, we replaced the diesel filter with a new one, and observed that the previous diesel filter was almost filled with water. I am waiting for your help on why the problem is caused. I repeat this especially, the irregular operation of the engine does not continue out of idle when the engine is cold during the first start, that is, the vehicle does not continue while driving and especially after warming up, even after idling, the engine is running out of order irregularly. he should have done, it is due to poor quality of fuel, it passes over time, he said ... Of course this opinion ... When the vehicle is idling, black smoke comes out from the exhaust during the first start, after the vehicle starts and especially after the engine is warming up, this uneven work at idling ends. water is not smoke, but steam is coming out ... Also, the owner of this vehicle before me used poor quality diesel, so it was previously the valve shape and the error of "antiplition default" appears on the instrument panel when sudden gas presses. depot used by consuming total exellium diesel m, thank goodness, even in sudden accelerations, that valve shape and error message did not come out again ... I wonder, besides egr valve, https://www.masotomotiv.com.tr/ud-Elektrovana-812.html egr electro valve Is there a part, irregular work in idle can be caused by the malfunction of this part, how to check this part, I would be glad if you help ... Regards ...

Maybe it would be helpful to clean the throttle. I would say research on this subject.

My brother, diesel vehicles are more sensitive to cold weather. Because of the cold where I work (yozgat, we saw this year -35 :) we encounter this situation almost everyday. A friend of ours working in the same place also has diesel 307. The room talks about the same sound and way of working. One of my neighbors has diesel fusion and the other has an & nbsp; accent in the morning. Same with me in my car gasoline :) Light wavy idling when the engine is cold, light black smoke accompanied by wavy idling in the diesel. In the meantime, it is of course beneficial to show it to a master by considering the spark plugs. Come on, greet ...

You can make it from the air, you can try the fuel injector cleaner additive koyap as your sister says.

I ran it in -8 degrees cold, no problem. idling is normal, around 1000 revolutions until warm. Around 800-750 when heated. Thank goodness I didn't have a misfire problem ...

mate oil filter, I say it is rubbing, there may be water accumulation.