2000 f150 5.4
just installed new spark plugs and when i cranked it up it acts like a bad cop. was fine before plug change. one of my cop fell of a bench onto the concrete are they that sensative? superchips diagnostic reads (po307 fault cylinder C )
is this a cop and what cylinder is it? thanks for your help in advance.

 

Take the coil off cylinder 7 and move it up front to 5 or 1 see if the miss moves if it does replace the coil.

 

ok so the 7 in 307 is the cylinder #. what does the C mean? i'd like to know for future reference how to decifer these codes. thanks

 

https://www.f150online.com/forums/v8...-dtc-list.html

 

new cop on cylinder #7. Runs great now. i didn't bother swaping it to another cylinder. i have had a few of these go bad and was pretty sure it was cop, just needed to know what cylinder. i printed the dtc list so now i am good to go in the future. it is nice having the super chips for diagnostics instead of paying 80 bucks to put on a computer at a shop. thanks for the quick responces guys.

 

Diagnostics are free @ auto zone. - That's if your souly referring to a simple scan. Hell, some phones will do that lol.