Hello dear motor talk user. My last post is a bit old, had problems with my brakes, which helped me here and could fix the error. Now again two problems… For a long time my Udo stutters and jerks. If it is cold without probs but as soon as it has temperature, it starts to stutter and starts to stutter only at 3000u/min and my consumption is currently at approx. 10-11l / 100km. In addition it is nen 1.5l with 90ps. Quite expensive in the net researched and found nothing really clear. But much read about the Lambda. But can not my AU reports really much take away……Aufhnung??? Well the 2nd Prob. Before about 4 weeks ago he jerked extremely and reacted hardly to gas. I saw sparks everywhere, but not where they should go directly? Did spark candles change the last time but I can only try new ones (was the reason). Now I have the Bosch Super 4 in it, 4 weeks ago well, but since yesterday the same shot again, but the candles are not allowed to sound again?4 but they don’t?