Too much hpop pressure?

[Whitefarmtractor]

While easing into the throttle, the hpop pressure gauge will peg at 4k psi, and the truck pretty much falls on its face until the pressure falls back below 3200. I was told that the hpop should never exceed 3200, can't find the root of the problem. Put a new icp sensor in, waste of $165, but now I can rule that out. maybe ipr sticking, or possibly chip/computer?

Stage 2 injectors, d66, intake & exhaust, gearhead tunes, sniper 7position

Any ideas?

Thanks, Chris

 

[Whitefarmtractor]

Well, hooked up the auto enginuity, and proved the autometer wrong. 3206 max pressure, though I got the icp duty cycle to 85% on a good accel. nothing else seems od. Was slightly bummed though, says im not obdII compatible, I can run the engine on active scan, but it doesnt provide any data about it.

Still a stumble when rolling into the throttle while cruising.

 

[FORD7.3]

What pump is in your truck?? stock hpop?

 

[Whitefarmtractor]

Yes, stock hpop.

Needs e fuel more than hpop. not related to problem though, becuase it has about 60 psi fuel press when the stumble occurs. Brand new fuel pedal btw, that was my first thought

 

[Bobby@cp]

AE should work in your truck.

 

[Whitefarmtractor]

Ill try again tomorrow. A window appeared saying not obdII compatible, but I think if I switch tabs it displays the info anyway. I ran out of steam today..

 

[patrickke]

Stock pump with a 15*?

 

[Tom S]

You have to select the non-obd compliant setting on an OBS with AE.

 

[Whitefarmtractor]

Its a stock hpop, I'm assuming thats 15*.
Here's some screen shots, researching codes now

 

[patrickke]

How many miles are on your truck?

 

[Whitefarmtractor]

234000. Broken in. ha

 

[patrickke]

You may have a bad hpop

 

[Whitefarmtractor]

Planning on upgrading the HPOP when I do the E-fuel and intercooler in a few months, but If I can't find a definite solution, I might do it sooner. The problem isn't a major issue, but an annoyance when you need the power without any delay.

 

[patrickke]

Yeah I would probably do LPoP at the same time and have it upgraded