P1211 code

[Wingdog]

I keep on getting a p1211 code usually when I have a bit of wieght on the truck and start to pull hills. Is there any other filters or screens beside the one on the top of the engine and the screens in the mixing chamber? Is this code possible from the tuner? I have already changed oil (shell rotella syn. 5w-40) ,have a new fuel pump and filter in, and just cleaned the mixing chamber screens.

 

[roosterdiesel]

The 1211 code is set from your high pressure oil pump not being able to keep up with what your programming is calling for.


What program were you in? You'll need to find out what the ICP is when you are setting the code using a scan tool or a mechanical gauge tied into you high pressure oil rails

 

[Wingdog]

I had it on the highest setting. I thought that there was a few things that would set off the code besides oil pressure. Like low fuel pressure, no fuel, wrong oil etc. I'm going to get a fuel pressure gauge and rule the fuel part out. Hopefully it's not time for a new HPOP.

 

[action4478]

I had it on the highest setting. I thought that there was a few things that would set off the code besides oil pressure. Like low fuel pressure, no fuel, wrong oil etc. I'm going to get a fuel pressure gauge and rule the fuel part out. Hopefully it's not time for a new HPOP.

Yep.....Here you go...

DTC P1211 indicates that injection control pressure was above or below commanded desired pressure during self test mode.
Possible causes:
incorrect oil or viscosity
poor oil quality
gel fuel/no fuel
low fuel pressure
damaged IPR valve
high-pressure oil system leak
damaged high-pressure oil pump
damaged PCM
Verify correct oil quality/viscosity and correct fuel grade are being used for the temperature conditions.

Hope this helps...