With my old(leaking) injectors, I had to give it throttle to get mine to start cold-but now with rebuilds, it starts most of the time with no throttle at all (it doesn't make sense-no throttle plate-could be spray pattern related )

__________________
1982 300DT 190K (Diesel Purge + synthetic oil=smoothness at last!!!)
2004 Ford E-350 6.0 L PSD 227K
2006 Dodge Ram 3500 SRW HO Cummins 4X4 48RE 42K (brute force tow vehicle)
2005 Scion xB wife's rolling pop can
1993 GMC Sierra C3500 6.2 142K