Hello everyone I have a 2014 Genie S85 telescopic boom lift with a Perkins 404F-22T engine. The problem with the boom lift is that in turtle mode it functions quickly and in rabbit mode it functions slowly. The engine ecm broke down and I had to replace it with a new ecm. The technician Installed Caterpillar software on the ecm. In turtle mode it is at 1500 rpm and in rabbit mode it is at 2100 rpm and according to the manufacturer's data it should be 2500 rpm in rabbit mode. I checked the tb41 herz. In turtle mode it gave 750hz and in rabbit mode it gave 1050hz, values significantly higher than the values that should be (turtle-227hz rabbit-443hz). What could be the problem?
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