My truck stopped running in March. Once started it would idle, but died after stepping on peddle. Done a bunch of work, after installing 2 new batteries it started right up for about 30 seconds & died. Hasn't started since & I'm seeing "injection pressure too high" on scanner. I need my truck running asap. Gonna do another leak test - have gone thru most of wiring, new ICP, ipr, resealed injectors on passenger side, fresh oil/filter, new fuel filters, etc. Found some bad fuses, everyone says Hpop but I have doubts. A lot out there on low injection pressure but nothing on high.
PLEASE HELP!!!
This is my first time doing this so bear with me when I learn how to respond.,

 

Post the actual code number please.

Did you ever solve these problems:
https://www.ford-trucks.com/forums/1...-no-power.html

 

https://photos.app.goo.gl/ALzEz5Y3ro...VjphSyw4EXgEQ9

 

Your post from 2018:
I was asking about what happened between 2018 and March ........... I suppose some of what you listed above fixed the issues from 2018, but it isn't clear to me anyway. Oh well. Some advice was offered back then, but not sure it was taken.

Your link above will not open.

 

Hope this goes thru & helps

 

As posted above, that link will not open for me. TYPE the code number please.

 

Since there is no code number to go by, I suppose I'll venture a guess.

One "ICP high" code (P2288) is for "Key-On, Engine-Off" (KOEO). That code is most likely wiring or sensor related since you haven't even started cranking if this code is present. IMO this code can not be related to the HPOP or high pressure oil system - again, because you haven't even tried to run the HPOP at the KOEO point.

The other code is P2289 and this one is more of a running code. It means that an "inferred ICP" number is being used. The PCM infers a number because it doesn't believe the sensor output. This one MIGHT have to do with some blockage in the path of the HPOP. IMO, the only two ways that can happen is a plugged up IPR valve or one/both standpipe failed. MAYBE an old IPR screen stuck down inside the IPR valve port would cause it also.

I just don't see how leak testing is going to help for a "high ICP". Maybe there are other issues going on though. Need more information.

You may have bought and installed the wrong ICP sensor also - who knows. I assume that this issue is unlikely because you were having issues before you replaced the ICP sensor, but there is not enough information posted to be certain of that.

Best of luck.

 

The ipr & ICP are new - I will run tests again today and provide codes. I know the ICP was showing 4.5V koeo & after replacing with 3rd ICP I now have . 21(?) Or .24V koeo.
I'll be back & thanx!

 

I have also found some bad fuses, wiring need some wrapping / replacing, etc.

 

You realize that this (above in bold) is the reason for the "high ICP" code? It means you were probably shorting out with the v-reference (5 volt) circuit to the signal wire, which falsely tells the PCM that the pressure is about "maxed out".

 

Where did you buy your new parts?

 

Purchased ICP from Rock Auto. Showing correct voltage but still no start.

 

Picture for example. When trying to diagnose a 6.0 from afar these numbers are what most folks look at to try to figure out if there are issues with the fuel delivery system. There are hundreds of ways to get these numbers via scanners, but you need to be able to look at more than just one number and/or error codes.

 

If you still need help, this is a great beginning video to watch to see if you have these minimum requirements to start the vehicle. You don’t need to use a scan gauge to get them, any diagnostic tool that reads the sensors can work.
Just post the values you get on your vehicle based on what Diesel Tech Ron displays. It will help.

 

Hopefully the picture will go thru this time - my attamp from the other -

Any help would be great - sounds like it wants to start & I don't know why the starter relay is showing what it does