Contribution balance code after ICP replacment

[alphamale3]

Ok guys, here is the story. 04 f250 6.0. I was getting contribution balance codes back in february on cylinder 6. I bought a new injector from ford and replaced it, truck has been running sweet since then untill a week ago. I was getting a icp sensor low code, along with some surging, bought a new sensor from ford along with the new pigtail harness. I went for a test drive to see how it drove, ran much better, so then I goto check my codes and now im recieving an intermitent contribution/balance code on cylinder 6 ill delete it and it stays away for a while then I check again and its back, truck seems to idle and run fine, any ideas? Stiction? Faulty injector, faulty installation?

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[alphamale3]

Buuummp...

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[Scott_K]

Did you doube check your work on the injector you replaced? Maybe something has worked loose?

[alphamale3]

I have not yet. Are you refering to electrical connections, or pulling the valve cover and visually inspecting the work? Im waiting a bit for some suggestions before trying to diagnose or perform anywork. Was thinking of a fresh oil change and some rev x, considering im due to change it in august.

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[Scott_K]

I was referring to anything you touched when the injector was replaced. I have found where I made goofs in the past by double checking, we are only human.

[alphamale3]

Bump for anymore ideas

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[alphamale3]

Ok so I checked the ficm just to rule that out and got 57.5 volts. (swamps 58v ficm) cleaned the ficm wire connection and the injector conections. Still throwing a contribution balance cylinder 6 code. It starts and drives fine, it does smoke white (very little) at first start up, then goes away after ive driven it. If I delete the code it will stay off for a while, but after the truck is warmed up ill delete the code and instantly will show back up. I unplugged the injector while running and its deffinately noticeable, so whats the problem? Maybe leaky injector contributing to much, loose hold down bolts, not seated correctly? This is driving me crazy, someone please chime in and give some insight!

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[southend]

Loose hold down bolt, damaged o ring. Imo that could be possible.

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