1.4 hdi 2004 my antipollution in my 307 car started to take me out of the skin now. Yes, there are many reasons. My complaint was like water. 1 In heavy traffic, if I do stop and go, it was burning and stopping in the 5th minute. The fault lamp accompanied. When I went in the city for a long time like a road to the road, the lamp was on and off again when I was taking off for a full time. Solution: The vehicle gave a high low pressure warning. Then we looked at the injector values and it showed an incredibly different value according to Injector 1 digwr. Normally it should have been between +2 and -2.It was even more ideal between +0.35 and -0.35. This and the rest of the injectors were too much of the return from the upper part. As a result, my four injectors were corrected with beauty and care. Although I have not been in the city for a long time, mileage, etc. there is still no problem. In the meantime, even if the diesel filter you change the bottom information does not fail and it seems like it does not cause problems, if the supplier industry material flows at 2000 3000 km and works incredibly inefficiently. I recommend that you replace it with the original, no matter what. I can say that this was also a factor for me.
dennis
sonerkyl