Code po301

[07Bluesilver]

I'm getting a codepo301 on the Edge. I replaced Spark plug, o rings on injectors that was destroyed previous owner must had someone work on it and didn't do so a good job. Moved coil to cylinder 4. but still getting it on cylinder 1. Should I change the fuel injector next? Intake manifold and intake have no leaks, maf flow is good. I hope it's not the pcm! Any info would be appreciated. THANKS! Sorry if placed in wrong section it can be moved if need to.

Edited August 27, 2021 by 07Bluesilver

[07Bluesilver]

I'm getting a codepo301 on the Edge. I replaced Spark plug, o rings on injectors that was destroyed previous owner must had someone work on it and didn't do so a good job. Moved coil to cylinder 4. but still getting it on cylinder 1. Should I change the fuel injector next? Intake manifold and intake have no leaks, maf flow is good. I hope it's not the pcm! Any info would be appreciated. THANKS! 

[WWWPerfA_ZN0W]

if that is the only code you are getting, it is worth a try replacing the injector. put in a new motorcraft plug, right?  no oil or fuel on the electrodes?  also test all the coils to make sure they are within a narrow range of resistance values from each other.

[07Bluesilver]

new plug Motorcraft Platinum same that was on the Edge already. no oil or fuel on the electrodes neither. Moved new coil to it's position. I will order new injector and see. THANKS!

[enigma-2]

Did you check for corrosion on the fuel injector electrical connection?