I have a 91 2.3 Mustang. I get codes 223 and 224. sometimes the check engine light comes On and the tach only reads out half of the RPMs. The previous owner told me he had a new coil pack installed. (The Front One) because the car was sputtering. it doesn't sputter, but bogs a little when i hit the gas lightly. i also theres a wire thats hanging in front of the Front coil pack. thanks before hand
theDIS module is the problem it is located on the front part of the intake manifold and when you replace it dont forget to put dielectric grease on the heat sink on the back of the module.