Engine just went off

Hello Can anyone help me? Have a Passat VR6 35i engine identification letter: AAA year 91, 128 kw, 174 hp, with distributor ignition system. and I have no more sparks of ignition. have tried most of it already : ECU changed, the problem has happened following: The MOtor under driving on a blow died didn’t jump any more. can you help me solve the problem? Would really be very important because I don’t know any more and my wallet is now empty. Thank you in advance