Error 00561

Hello.
after I read out the error memory today, I got the following message:

00561 - Mixture Adaptation
13-10 - Adaptation Limit (Mul) Not Reached - Intermittent

I then evaluated the measurement blocks whereby the values for the lamda control (determined values 123 - 133) always wandered through from 119 to 136 and the idle bar.... 45 instead of the allowed 35 - 44. Engine speed was also a little too low!

So I went over the spark plugs and found them all a little worn out.

My diagnosis now falls on the now certainly 15 years old vacuum hoses, as they also feel quite soft and thin.

I also have the famous wave-like acceleration at partial load, as well as an increased fuel consumption.


Soooooo, now my question: Am I right with my error diagnosis?

Welcome
Kim