We don't know exactyly before machine situation. But there is no error code. I cleaned Dpf via computer but machine is giving dpf light always. Machine emit black smoke. I controlled; injector, all filters, compression test (no problem). Machine is working until any command, like turn steering wheel and then machine stopped by itself. I don't think so electronic fault because no error code. Finally, we fixed to the machine timing gear because isn't normal. Could you please give me advise.