Now and then to my problem.I drive a 92-y V8 4.2l. And I'm 3 days at the tinkering and just can't get any further.It started that my baby was getting up and down quite fast in the stand gas and was rusting deep black.Apart from that he was running completely restless.So I read out about Audi's mistakes. As far as so good, for 130€ ne new bought and built in.Now it no longer ruins but the problem with the restless run is still.So read out again to Audi error.
1. 00537 Lambda scheme
Understep the limit of regulation
Sporadic
2. 00561 Mixture adjustment
Underlying adaptation limit (mul.)
So and now the funny thing is, when the car runs for about 2 minutes in the stationary gas, it suddenly catches itself, runs clean and calmly and all the mistakes suddenly disappear from the memory of the fault.When I then give gas again, it swallows itself quite violently and runs so modestly again.Let me get him back in peace.Otherwise, he drives quite normally.I noticed that he no longer falls below 25 liters in the current consumption and that's unfortunately also true.
So if anyone can give me a tip I would be very grateful!!!!!! I'm really desperate.
Oh, well, one more thing, if I pull off the Lambda probe, he'll smoke again.
Hast Du vielleicht ne Ahnung wo man sowas günstiger bekommen kann? 
