ECM or me
1993 chevy 1500. took out a 4.3 ltr.v-6 and the 4l60e tranny. now i have the 5.7 ltr frm a 1995 truck with a good 700r tranny .i tried changin the ecm but still i cant get fire to leave my coil . n the switch on position all four wires r hot on the coil. even tried another coil.