ADI, your best bet is to get your landy to do whatever is does when you say that your power is down and the engine is noisy, then go to a workshop that has the computer program and who can connect the computer up to your landy, but, DO NOT SWITCH IT OFF!!!!! once you switch it off and restart, the landy computer has reset itself. KEEP IT RUNNING WHEN YOU GET TO THE WORKSHOP, and get them to connect up their computer. this way, any and all faults will show up, and they may be able to solve your problem.