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Possible Injector Issues, or maybe not...
I have recently purchased a 2001 F350. I'm having some issues with it idling a little rough and smoking white when it's warming up, or when it sits for a long time idling. Not a ton of smoke or anything, but more than my dad's stock 1999 and strong smelling. I also get not great mileage. (like 16 mpg tops, that's Canadian MPG by the way, so like 13 US mpg)
I have a DIY Tymar style intake and there is a dfuser 18k module that was in the truck when I got it.
I just found out this morning that the previous owner had rebuilt the injectors in the last year with a Stage 2 kit from Rosewood Diesel. I emailed Jim @ Rosewood to find out what he sold the guy. He told me "Stage-2 Kit, which overhauls the injectors and adds new larger Stage-2 nozzles"
Could the larger nozzles cause some over-fueling without a chip? Right now I don't have chip, but once my gauges are in and exhaust is done (4" Straight Pipe) I plan to order something up from Jody @ DP.
I'm taking the truck into my local diesel performance shop on Tuesday morn to run some diagnostics and hopefully they can help. They are hardcore 7.3 guys.
Can anyone tell me how to properly set the Dfuser 18k? Should I even use it? Just driving around I can't really tell it's there. I mostly keep it turned all the way down 'cause I don't understand it and don't want to hurt anything. I don't even know if I can hurt anything with it.
Thanks for the help.