When I sober up, I'll read that again, lol

 

Happy Birthday.

From what I was taught the reason for using referenced values is so the relationship between the sensor's data is all evenly scaled. In particular doing this is valuable when sensor data isn't linear.

 

My truck randomly act like it runs out of fuel for a second and then runs fine. It does it when it is over 90 out.

 

I picked up this gauge from HF and it is showing 65 psi fuel pressure at idol.
https://www.harborfreight.com/fuel-i...ressure+tester

 

That is waaaaay too high. You should be at 37-39 psi with the vacuum line removed and plugged off.

 

It's a Harbor freight gauge. You going to trust it?

In any event, we do not know HOW he got that reading so there's no way to know if it's a valid reading that is actually useful for diagnostics. With the engine running and no vacuum applied to the regulator, it would be normal for the pressure to be "high" since there's no regulation of the pressure.

 

kd4gij,

Do you have a stock tune and stock injectors? Didn't think this applied or was helpful but someone who looked at your data said something to the effect of, "Looks like someone put in larger injectors and pretended that the engine is boosted and they were a tuner."

Your fuel pressure has me wondering about what he said now.

 

As far as I know every thing is stock. I got the truck from an old man.

 

KD......remember the past 2 years where guys were having the same exact problem? Most were related to heat. The final diagnosis and repair was replacing the fuel pump. The check valve messes up and throws the pressure out of sight then goes to nothing then back to pressure.

I think it was DrillRig and one other from AZ that were having the most problems. A new fuel pump cured the problem. That is where I would be looking. The threads are there from then, so you can read them and figure if this matches your problems.

https://www.f150forum.com/search.php?searchid=16669665

 

AK that link says no match found. What did you search?