Sorry if I put this in the wrong forum first go around, if you already read it disregard....

2000 F350 Crew Cab, 4x4 automatic 7.3 with 119,000 miles.

I am getting these two codes and am familiar enough to know that the one 1211 is either high or low pressure and the 1282 is excessive pressure.

The truck sat a long time and was rarely driven before I owned it and I have put 5-6 tanks of good fuel with diesel kleen in it as well as 2000 miles on a fresh oil change with 15/40 Rotella. I thought it might be a sticky IPR and it would clear itself out....not so.

Right before I bought it the previous owner had the HPOP replaced (at my suggestion due to leakage) with a stock one (receipt and warranty at my request). Therefore I think since I have both codes it is over pressure on the injection control pressure.

My real question is....can I cause harm now, when every once and a while accelerating to merge and the light blinks occaisionally at me or will I cause damage later when I put a TS chip DIY filter kit and 4" exhaust and "get on it" at red lights. The truck is stock right now and I never intend on going the "full build route" with injectors, methane etc.... This is my daily driver that pulls the boat and hauls the kids. Any advice is appreciated.

 

Can you watch duty cycle along with the ICP to get a better feel for what is going on, maybe log some live data?

You could have fuel pressure issues, which can cause spikes in the ICP as well, you would have to rig up at least a temporary fuel pressure gauge to know that though.

 

Can't watch live data....don't have AE package yet.