Join Date: Sep 2011
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I took a meter and checked for continuity on my #5 injector wiring leads from the FICM. No problems there. I then checked the resistance of the injector solenoids on 1,3,5,7. All of them read .6 -.8 ohms. Moved #1 injector to #5 position and put another injector into #1.
Truck starts quickly, idles great, then drove around surface streets and jumped on it when able. Ran smooth for a couple of days. Now when I tow or drive on freeway, I get a miss once I come to streetlights and am idling. Also have a slight shudder at tiimes when giving light pedal, can tell its missing, then I push pedal down and it blows out some smoke and takes off. Only does it after it is warmed up and only intermittantly, usually after high speed or high load condition.
Seems like volume issue? But is tripping the #5 cylinder contribution code only. Not others, ever.
FICM is 46.5-48.5v while driving, soldered the unit last week just in case.
Installed blue spring and 6.4 banjo bolts in fuel system last week as well.
HPOP reads 580-640psi at idle, climbs up to 3400-3700psi max while driving.
Has great power and mileage, even with this issue.
Why only one cylinder (#5)?
07' F350 KR Dually - Studded - Deleted - 4" dp to 5" w/muffler -175/75 warrens - KC stage 2.5 - SCT x3 - Edge Insight CTS - 185 amp - 3" Rough Country with 285/55/r17 Dunlops.