I,ve been working on my car wich I do not mind when I can get the problems solved. I have replaced the 2 O2 sensors,cleaned the EGR valve and piping, decarb the intake manifold etc. For all that, the latest was the rear bank O2 sensor, wich that's when I saw the wiring really bad peeling off and touching each other. Right now I'm doing all the wiring and also some Vacumm hoses, also brand new spark plug wires. I wich after that it will be no more "CEL". Ford did really cheap w/ that wiring.