hello, with my audi 80 b4, bj.92 (2.0 injection) the following problem occurs, however only occasionally: when the engine is cold everything goes perfectly. after about 3-5 min when it slowly warms up, the engine suddenly “slips out”, it feels as if it only ignites once in a while, when giving gas there are strong crackers, in the empty run there are the same dropouts. the problem disappears after a few minutes on its own again. and it also occurs when I use the engine in the stan d warm up – at some point he starts to stutter and after 2-3 min everything goes perfectly again. does someone have an idea what this could be about? would be really grateful to you! bastian