Obd 1 code 224
My check engine light came on ran a scan and code 224 came up(primary coil pack ) checked it and found it to be bad changed it and the plug wires. Reset check engine light , it came back on scanned again code 224 again. Checked 2nd coil pack it.s good. Checked ICM and its good what else could cause this code. '94 Ranger 2.3L 2x4 stock.
Any thoughts would be helpful