2005 Expedition 5.4L 3v. 130,000 miles.
I was asked to change the plugs in this truck for a friend. They were the originals and it was running a little rough so I did. Started it after replacing plugs and it ran really rough. Did some research and followed up by replacing all the boots and using dioelec grease. Finally got it to throw codes p0201, p0203, p0300, p0303, p0307, p0351, p0355, p0356, p0357, p0358.
Checked all the plugs to the injectors, checked all the plugs to the cop's, checked all the vacuum lines I could access. Also checked all connectors I could. (including cam pos sensors) all tight and clean. Checked #30 fuse for connection, tried moving all wiring harnesses while it was running and no change in rough idle. Any thoughts?

 

I know the 201 and 203 point to faulty injectors in #1 and #3. 303 is a misfire in #3, 307 misfire on #7

At very least 1 and 3 probably need new injectors. When was the last time you ran an injector cleaner though the fuel?

The rest I am not sure and would have to look up

 

ok so 351 though 358 are faults in the plug system for #1, 5, 6, 7 and 8. This is usually due to something in the wiring for each cop NOT the cop its self. Sound like some wiring somewhere had gone really wrong.