Hello guys, I have had a considerable power loss from 4100 rpm in my convertible for a few days. In addition, an increased idle at approx. 1200 revolutions, very slightly fluctuating. With full load starting from 4100 rotary zal the power in every gear is gone with once and it feels like someone holds on. I want to have it read out in the workshop today, I hope they get it baked. Do I have to pay attention to something? The half-gods in Blaumann don’t always know everything. When I’m idle, I give it back like a gas, it always hits one in between and makes almost a misignition. When I roll with a motor brake it also sounds slightly like a misignition. It doesn’t slam but swells down and you hear what burns wrong or where it doesn’t belong. In addition, I probably have another problem, but I don’t have any approach at all. In the speed window from 110 to 120 the car shakes, you have the feeling slightly from the left This error occurs at constant speed (120) at intervals of about every 4 seconds. So almost 4 seconds of easy shaking > rolls free 4 sec. > Shake > rolls free etc. To the first problem, the power loss, I have already found a few things that I can have tested. However, since I am not so fit myself, I probably have to deal with the most possible causes of error in di But where do I start in order not to burn another pile of money? Audi Cabrio BJ 93 2,3l NG (equipment Kodiak: leather + cover dark blue): – Let the control unit read out, does that work, do I have to consider what? – Check the Lambda probe if necessary, pull it off and try it? – Measure the full load switch? – Change the tap sensor if necessary? – Check the petrol pressure? (petrol pump makes noises) – Test the sieve in the KE, what does it have to do? My petrol pump also makes noises and my tankance I have read in a forum that it could also be the sieve at the petrol pump. Where is it, I can check it myself, expand it and clean it if necessary. The following parts have been renewed in the last 20,000. Timing belts Spark plugs Crammers all form loops KE / suction bridge / idle control etc. actually all air filters / fuel filter exhaust system stainless steel from KAT complete front axle (new ), drives, crossbars, coupling rods, track rods, steering gear, engine bearing, bearing for auxiliary frame, complete cover, interior equipment, brake(sleeps, pistons, saddles, discs, blocks) front and rear, aluminium rims RH 17x 8.5 and 9.5J + tyres 225/245 From the cat to the pre-muffler I have a very small spot, behind the connecting clamp (shrink for rejuvenation), where it sniffs out very easily. (approx. 3mm wide and 1cm long = very slightly black) I wanted to have it welded now, But that can’t be the reason. I ask for your support and a few tips on how to best proceed, especially in what order.