At the moment the worm is really in it. In the last few days Omi went out constantly. First reading of the error code: missing speed signal and air quantity meter. Then he deleted the errors, I drove a few minutes through the area until the error appeared again and according to the error code it was the air quantity meter which the FH got me then quite “price value” via the accessory trade. After I changed the part at first showed no improvement. So again to the dealer . He read out again and then the idle speed which according to his statement was very low (700 rpm) was now set to 900 rpm. He said that possibly also one of the speed sensors is defective and in this case he recommended the change of cam and crankshaft sensor. However, this is only necessary if the error should occur again… So, for example, I noticed that the LiMa (Delco is on it) does something that it should not do: it gives rhy I guess that the front ball bearing (on the belt disc) will soon signal its life cycle to end. Now I have already read here in the forum and think that I have already prepared a used Bosch LiMa and had the following offer in the bay in mind: Article number: 160543452327 (http://www.ebay.de/…/160543452327?…). Originally I had thought to change the ball bearings of the Delco. But at the price of the mentioned Ang ebots seems to me that uneconomic. Provided the LiMa fits for my mom. What are your opinions/knowledge/proposals? Thanks already in advance.