Looking for advise to upgrade/replace the ECM(part # 16005520) and Distributor on a 1979 231 v6 turbo Buick engine that is in a 1981 Buick regal sports coupe.
The engine runs but the ECM does seem to be retarding the timing under load . Originally I had no spark at the distributor I replaced the ECM with a spare I had and it fired right up but didn't run as smooth as before ,When I removed the cap the counter weight nylon pins bushings and the springs where worn and the magnet that is at the base of the distributor at the secondary coil was in pieces. I repaired the distributor weights and magnet issue but it back fires or detonates at about 2000 rpm. If i run a standard distributor it runs strong no hesitation or sputtering .I don't want to run it this way i am afraid it will eventually damage the engine. Any advise is greatly appreciated.
The engine runs but the ECM does seem to be retarding the timing under load . Originally I had no spark at the distributor I replaced the ECM with a spare I had and it fired right up but didn't run as smooth as before ,When I removed the cap the counter weight nylon pins bushings and the springs where worn and the magnet that is at the base of the distributor at the secondary coil was in pieces. I repaired the distributor weights and magnet issue but it back fires or detonates at about 2000 rpm. If i run a standard distributor it runs strong no hesitation or sputtering .I don't want to run it this way i am afraid it will eventually damage the engine. Any advise is greatly appreciated.
