Hi all, newby here to this site. My 2001 Expedition, started out for me with a front seal leaking in the transmission. I removed the trans and replaced the seal. No more leak, then fault codes 301.305, #1 cylinder/#5 cylinder fault, translation, misfire. Having read through this forum, I decided to replace all the plugs and coils. Now I have a po 358 fault code, primary coil circut fault. I rechecked the connections and everything is properly connected. It could mean one of the new coils is defective from the factory or I missed something when looking at the connections. The motor runs rougher now then it did with fault codes po 301/po 305 At this point all ideas are appreciated. By the way I cleaned the throttle body and mAF/MAS.
jOHN
jOHN
