What's up guys? Been a while since I've been on here. Too much going on. House fire and about everything else in between. Anyway my 2003 f250 started to sputter and died. Won't restart the rest of thw day. Go out next morning will start right up for about 1-2 min and dies like you shut thw key off. Won't restart. Cranks fine. Oil pressure showing 1300lbs while cranking,ipr is 43% while cranking
, but when koeo ipr is 97% which is weird. My excision shows 23% koeo.New oil,oem filters,fuel pressure is at 50 lbs while cranking. Seems electrical or something. Oil pump maybe but why 1300 lbs while cranking of that?

 

Are you able to see what the ICP and IPR read just before she shuts off?
Curious about those numbers..........also, FICM and V's during running and then before shutdown.
FICM sync when it dies?
97% is really odd though..........any codes at all?

 

Yea the ipr,icp don't change any when it shuts down. Ficm is in sync. It's like you shut the key off. But when it does start in the mornings if you Rev it up to about 2k rpm seems to stumble some. Let idle sounds fine. Then let it idle for a min shuts down. After that doesn't even act like it wants to run. Ficm is 47v

 

Tried unplugging ICP?

 

Your posting a bad KOEO number for IPR%

Spec is 14% IPR


BAd IPR OR IPR HARNESS or that what I would start what gauge you have cause you EX sounds off to at KOEO for IPR

 

Yea that's what I'm thinking. Changed ipr same thing. Guess I'll check the harness. I'm using a ids. Works on my other truck

 

With koeo the ipr is readin 97.8. Even if I unlug it reads the same. Turn it over with it unplugged and goes to 54% which is weird because it's unplugged.

 

Harness issue or the pigtail may be bad.

 

If I cut that pigtail off should it be reading anything with koeo? If t was th pigtail

 

it shouldn't read anything, unless its shorted. Did you check VREF for 5.0v? That could show a shorted sensor.

 

Just for kicks changed the pcm. Still starts for about 2 minutes. Idles fine but give it about 2k rpm and sputters then dies. Won't restart until morning. Now ipr with koeo shows 14% or so. But still won't run.

 

Ok that's good IPR number at KOEO

what's cranking IPR% and ICP

DO YOU SEE a FPW

 

While cranking ipr is at 46% and icp is 1300. When it does run it smokes white smoke and smell of unburnt fuel. Changed ficm still the same.changed ficm relay same thing.fpw is around 1900

 

Runs maybe 2 min each morning. Wierd

 

Bad inject time for bubble test

Maybe verify FICM VOLTAGE FIRST

HPO LOOKS OK
AND what numbers change after it dies and won't start