my sister's car is misfiring horribly. idles at 400rpm and has no power at all. i replaced her spark plugs and reset the computer. it ran great for about 2 trips around the block then it started back up again. i pulled the codes and got 223 which says "loss of dual plug inhibit (DPI) control"
what is that? where is that? and is it really hard to fix? dont really know anything about the 2.3s because i have a 5.0 so i need all the help i can get
thanks