6.4 help

[superstroker99]

Need some help have a 2008 6.4 guy has done a DPF/ERG delete got a DPF-R to allow the truck to run with the deletes. Truck runs like a champ till 2300 rpms. Will not go over that sets the P0088 rail pressure to high but watching on my scanner fuel pressuer voltage will get to 3.21 volts will not go any higher and thats when i get right at 2300 rpms. Acts like a rev limiter set at 2300. Any help would be great.

 

[BFT]

Not familiar with the DPF-R. I would try another tuner SCT, H&S or spartan.

 

[superstroker99]

First words out my mouth owner dose not want to spend the change :shrug:

 

[webb06]

I'd change the fuel pressure sensor. I highly doubt it's the tuner.

 

[JrStroker]

My truck does this on the Spartan 210 tune. Doesn't act up on lower tunes(40hp) or higher tunes(275hp). I had the sensor and wire harness replaced with no avail. $400 down the drain..Throws P0088 on the 210 but none elsewhere.

 

[BFT]

I know that the DPF-R acts as a "fooler" so the DPF can be off, if I remember correctly. I wasn't aware that it was capable of deleting the EGR.

 

[superstroker99]

I wasnt either

 

[Powerstroke_fan]

It says that it is on there website. I checked when i bought mine but will be doing egr delete tomorrow. So i will find out for sure.