KME – fine-tuning???

Hello guys, I’m new here and have a couple of questions. But first the history. About a year ago I gave my moose a gas system. In the first 2 months I was 6 times at the Gasmann because of fine settings. After that the system ran 4-5 months half well. Then the engine did not pull so well anymore. I am to the Gas Fuzzi, and look, the shop is no longer there. I drove to the other and had everything adjusted there. I also learned that the system, which I have in it is not suitable for 5cylinder engines. And besides, the system adjusts itself. Later I thought: “now I help myself!!!” and have bought software and cables for the system. Until then I have only switched the temperature. I can’t really get clear with the rest. (maps enter etc.) The 2nd gas fuzzi really have my back then: “if the system is properly set up, you don’t even notice whether you drive with gas or gasoline”. Well, I never heard it. With me, you say about 20 % of the demand.