by Gots_a_sol » Wed Dec 30, 2015 5:16 pm
For reference again:
Idles fine, but starts missing/stumbling when revved up.
Won't go past 2k rpm.
Billows white/white-ish gray smoke when revved up.
Fuel pressure sits at ~10 psi at idle, drops to 5 when revved up but will start creeping back up if you hold the rpms up for a bit. I was under the impression this would sit at 15 psi so that might be a clue (THD kit).
New low pressure piston lift pump, no change other than higher psi obviously.
New 5x12 fuel injectors, idles much smoother but it still had the stock injectors with 330k prior to this
LPPP pre screen is clear of debris.
Replaced the AN fitting on the lift pump with a hose barb with a hose going straight in a fuel can, no change.
Replaced filters for the hell of it, no change.
Fuel heater deleted
Checked the firing order just to sure and it is correct (had all the lines off when did injectors)
Pulled the nut off the timing gear and the woodruff key still appears intact.
Pulled the top off the afc housing and the little pin moves freely and the diaphragm was fine.
-Joe
00 Excursion - 12v/nv4500, he351cw, 5x12s, 366 spring, THD piston pump, 4" intake/exhaust