CK12SK

hello i am new here and just purchased my first comanche the other day from a buddy it was running and driving but needed motor mounts so my buddy pulled the engine out put a new clutch in it and 2 new motor mounts about a year ago and he couldnt ever get it to start i bought it last week and swapped ecu out with another one and new crnk sensor i am still not getting any spark or injector pulse has any one had this issue before its a 1987 4.0 5 speed 4x4 any help would be appreciated thanks