So your boost reading is coming from the TS and NOT from an actual boost gauge? Could there be an issue with the reading of your boost? The pedestal area is a known area for leaks a lot of us do an EBPV delete for that reason. . Do you have a fuel pressure gauge? Fuel filter clean?

Yes boost numbers come from TS which I think is reading off the MAP sensor. But either way the truck is a lot more sluggish than other 7.3’s I’ve driven comparing at stock setting. I’ve got a problem somewhere. It’s like turbo only works at high rpms with pedal on floor, other than when standing on pedal truck is weak. I’m going to try and post video of ICP and IPR duty cycle with truck on 75 horse tune. Thanks Again fellas
IMG_3480.MOV

I couldn’t post video but WOT ICP seems to average around 2180psi and IPR duty cycle made it up to 61% until turbo bark while accelerating.

Im located just North of Youngsville, NC. I saw it around 2500 for a fraction of a second and it dropped when shifting and when turbo started barking. When turbo started barking I was still in throttle. Is there anyway to post video of guage on the forum? Thanks

Post it to YouTube first, then post the link here.

I took truck to a creditable diesel shop today. Tech hooked scanner to truck and ended up driving himself. He agreed truck is weak. We could only test stock since we had to unplug Informant from OBDI.
Tech said what really stands out is that he only saw Oil pressure of 2800 when it should have been 3500.
He said most likely my problem is HPOP. But could be regulator, injector, or low fuel pressure.
i dropped the fuel tank today and found the two little screens were packed with stuff I just knew I found the culprit but that wasn’t it. Truck is the same.
He quoted $1200 to replace HPOP and regulator. 1 year warranty and unlimited mileage.
Do you all feel this could be my problem?

Does $1200 sound reasonable?

Thanks

Yes, after researching seems 2800 is right where it should be. I’m about to go nutz trying to correct the lack of power on this truck. I’m considering replacing the ICP, IPR, or MAP. MAP is probably ok reads 1.5v KOEO and keeps about 14 psi difference between Boost. Any thoughts on replacing sensors?

So I’ve dropped the tank and I thought I had found the problem but not so lucky. The little shotgun shell filters had a lot of little black specs in them so I cleaned and reinstalled tank but no difference. Then I did a lot of research on best mechanics for 7.3 and made a lot of phone calls. Then I took the truck to Powell’s Powerstroke Repair who advertises the latest diagnostic equipment. He came highly recommended. He has been going over the truck for a couple of days and has came to the conclusion I need to replace the injectors. He checked fuel pressure and said it maintained 40psi. He said it could cost $4000 to replace injectors and glow plugs. I’m no expert, but can the engine run smoothly with no signs of starving for fuel and need all the injectors replaces?
Would faulty injectors cause low boost and weak power?
Would this explain why truck makes more boost on stock rather than tunes?