Hello guys, after a long abstinence I have a question here and I hope very much you can help me! My Audi 80 B4 with 115 hp (2.0) year 94 consumes always and always more. when I bought it a year ago, it was at 7,8 liters consumption. Now I am at over 10-11 liters. Drive every morning 15 kilometers into business and back in the evening (moderat road mode) Exhaust gas test I had made before 1st month. was top. Error code read also provided nothing. so what k Have you already had the same problem? Does the change of the Lambda probe bring what? Where and how can I measure the CO value … or is it due to something else? would be very grateful to you, because it is quite expensive! Oh, I have retrofitted a TWIN-Tec KLR but for a year now… is there the dog buried? Wekstatt said they can’t do anything, just exchange everything one after the other… but it’s too expensive for me, I can do that myself! so thank you again and hopefully Phil’s coming up with something!