ford 6.0 powerstroke p0231 code
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3rd Gear
Joined: Nov 2023
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ford 6.0 powerstroke p0231 code
Good evening,
Ive got a late 2004 f350 6.0, almost bone stock minus an economy tune on a ficmrepair.com ultimate FICM. Still got the EGR and all.
Heres the problem: Sometimes when cruising between 40 and 65mph, the engine will cutoff. I will coast to a stop and crank it over and it starts back up after usually one try, at most two, nothing terrible. Im not loaded with a trailer or under hard acceleration but it does seem to happen under light throttle, and maybe happens less while in tow haul mode(I tried this to keep the rpms higher and maybe keep the hpop spinning faster), though that may be a coincidence. EDIT; it has since started to stall while idling since my original post in the superduty thread section. What are y'alls opinions?
I have a OBD link scan tool and my hpop is reading anywhere from high 500s to 3000s psi while driving and the IPR is working as it should. I have replaced the fuel pump and the inertia switch as per some research, and have a new fuse box on the way, all ford parts. It is still throwing the p0231 code. Is there any other possible causes for this problem that would throw the p0231 code?
Any help is appriciated.
Ive got a late 2004 f350 6.0, almost bone stock minus an economy tune on a ficmrepair.com ultimate FICM. Still got the EGR and all.
Heres the problem: Sometimes when cruising between 40 and 65mph, the engine will cutoff. I will coast to a stop and crank it over and it starts back up after usually one try, at most two, nothing terrible. Im not loaded with a trailer or under hard acceleration but it does seem to happen under light throttle, and maybe happens less while in tow haul mode(I tried this to keep the rpms higher and maybe keep the hpop spinning faster), though that may be a coincidence. EDIT; it has since started to stall while idling since my original post in the superduty thread section. What are y'alls opinions?
I have a OBD link scan tool and my hpop is reading anywhere from high 500s to 3000s psi while driving and the IPR is working as it should. I have replaced the fuel pump and the inertia switch as per some research, and have a new fuse box on the way, all ford parts. It is still throwing the p0231 code. Is there any other possible causes for this problem that would throw the p0231 code?
Any help is appriciated.
Fleet Owner
Joined: Nov 2003
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Possible causes: Open/short circuit, relay, inertia switch or fuel pump (DTC is for no voltage on the fuel pump monitor circuit).
A failed relay is somewhat common. Your symptoms are consistent with that relay beginning to fail. The fuse in question is integrally soldered to the CJB. Replacing the CJB as you are intending to do should resolve your issue (as long as there isn't a wiring short somewhere).
A failed relay is somewhat common. Your symptoms are consistent with that relay beginning to fail. The fuse in question is integrally soldered to the CJB. Replacing the CJB as you are intending to do should resolve your issue (as long as there isn't a wiring short somewhere).
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