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Message: [QUOTE="Tiha, post: 1564168, member: 33189"] Thanks! It is getting there. Finally got some road miles on it yesterday. I have 3 injectors that seem to have a little diesel seeping from somewhere. I need to re tighten the high pressure fuel line, But I think it is the return line. Going to pull the return and replace the o-ring on those 3. Hopefully that will clear it up. Otherwise my return harness is faulty. LOL It starts right up. Like it should. Hasn't started that good in years. Very happy about that. It burns clean at idle even from cold start. No smoke, no haze. But, it is not the same truck. Not sure if that is normal? Or maybe the system needs to relearn. But it drives different. Still getting a puff of black smoke on take off. But more so it feels like it has a lot more low end off the line. Like you barely touch the pedal and it wants to go. Then it seems like there is less acceleration than there used to be as when getting on an entrance ramp. Have not had it on a trailer yet. Boost seems to be the same. Like I said before I am over sensitive right now, so we will see. Have not put a computer back on it yet either to see what the fuel trims are doing. If that #4 injector is not sealing and dumping fuel that could be my black smoke. Or maybe it is just wishful thinking. Not sure what I could have done different. I got a motorcraft kit. Spent probably more than I needed to. At this point I feel like I should have bought the cheapest crap out there for the results I have gotten. Also wondering if NEW vs reman bosch or motorcraft would have been any different. The replacement CP4 they sent had test paperwork. The original did not. Should that have been a sign? [/QUOTE]