Holders Diesel and Holderdown Performance are two different company's. The above was referring to Holders Diesel which we build our own injectors. Holderdown sells WDI injectors two different brands of injectors.
But to answer your question different shops build with different parts. It is...
I had the same issue a couple times a few years ago but mainly with larger injectors. I increased torque to 31 ft-lbs and did not have another issue. Since then I torque all injectors to 31, might be frowned upon by some but it has worked great for me.
Looks like you have several possible issues. Just some quick advice though I would not rely on any readings from that livewire TS. I have had several that do not read parameters correctly, SCT just said it was a problem with the truck but any other scanner would read the parameters correctly...
Yeah in that case I would look into your alternator and probably upgrade it if it is bad. Have your batterys load tested, as well as check your cables and grounds.
I would start there lthough a little white smoke on start up is pretty normal for these trucks not sure how much your talking about. But you can also check it with a multimeter since you do not have a monitor. Look it up on youtube there are some good videos that show how to do it.