Obd 1 dode 224
I have a 94 2.3l stock 2x4 and Pulled a code 224 primary coil , checked coil no good replaced coil and wires checked 2nd coil pack it's good. Reset check engine light , it came back code 224 , checked ICM it's good. What else is there to check about this code. My truck runs and idles fine gets 22mpg .