ok guy i have a 91 hf with a zc in it with the hf harness engine and under dash one, it will turn over and get fuel just no spark what so ever....... ive change the dizzy 2 times and still throws a 15 check engine code (ignition output signal) i have changed the igniter and coil still no spark all ground are on... idk if its the main relay or what help me out......... i no that that the white wires from the dizzy to the ecu is white but im not getting 10v at all