Running on 4, problem solved. UVC injector harness.
Last year, I took my truck in to a shop because at the time, I didn't have time to dig into it. Without the paperwork in front of me, I can't give you the codes but the shop said it had IDM faults, and injector faults. They charged me $700 for labor, and I gave them a auto computer exchange IDM because they said that was the part that was bad. It ran fine for about 8 months. A few weeks ago, same exact symptoms. I didn't have a code reader (loaned to who know's who...) so I decided to replace the under valve cover injector harness after a little bit of troubleshooting. There is a tech bulletin if you google powerstroke injector harness, very, very good info on how to troubleshoot.
Check out the pic, I love it when you find a smoking gun!!! If you can't see the pic, it's in my albums under "UVC injector harness"
Anyway, thanks to this site, I found the problem on my own and fixed it for $75 instead of another grand! I haven't put in the passenger side uvc harness, but will keep it on hand, maybe next summer.
Also don't forget to check the wires underneath the 42 pin connector. My engine always had a slight miss, one of the wires underneath the connector was chafing on the drivers side valve cover.
2001 F-250 7.3 4WD CC LB,SB CON OFE clutch, DIY 6637 intake. Superior compressor, 4"SS Magnaflow
DP-Tuner:Hi idle,60T,80T,80E,120. Diprocol boost/pyro. Overboost Annihilator. Hi-Flow turbo outlet.
4" Superlift. Springs/blocks w/ Bilsteins. 315/75-16 Toyo M/T's. 35" spare underneath. Truetrac
Alpine deck, Infinity 6x8's, Kicker Comp 10", JBL 6x60 amp, 1.2 MFD cap.
Glasstite High Rise Cap. 7,800 empty weight.
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Last edited by Captain Starbucks; 11-30-2010 at 12:46 AM.