Hello Forumian, recently changed the control chain to my senator and disassembled half the engine! So, the engine runs problem-free, but it lights up as I said the mud roller lamp in the cockpit. With the own Tech1 error read out and there came said FC 31 and 94. What can or should I do to fix this error? Can this be called that the corresponding parts are defective or does that mean something else? I would be very happy about a helpful answer! Thank you to all of you