Wierd power problem Help pleas

[2000excursion]

ok so replaced ICP CAS Fuel filter oil filter and the only code I get is glow plug module. Basically truck runs good up till 15 psi ...once it builds more then 15psi it seems like its defueling but if I push the pedal alll the way to the floor it seems like there is a burst of power that happens kinda like a surge and it seems like it surges on then off.....by surge I mean a surge of power

[RadarRider]

Originally Posted by 2000excursion

ok so replaced ICP CAS Fuel filter oil filter and the only code I get is glow plug module. Basically truck runs good up till 15 psi ...once it builds more then 15psi it seems like its defueling but if I push the pedal alll the way to the floor it seems like there is a burst of power that happens kinda like a surge and it seems like it surges on then off.....by surge I mean a surge of power

Any SES light or codes? Are you hearing a hissing noise @ all?

[2000excursion]

only code is for the glow plug module.

its basically from 15-26psi feels like its defueling at 90 percent throttle

at 100 percent throttle it seems to have more power and may be at full power 26psi

[lcducote]

it probally is defueling...

[RadarRider]

Originally Posted by 2000excursion

only code is for the glow plug module.

its basically from 15-26psi feels like its defueling at 90 percent throttle

at 100 percent throttle it seems to have more power and may be at full power 26psi

Do you have a boost fooler?

[2000excursion]

no I dont....my tune is stock so shouldnt I only be able to make 16psi? Ill make a boost fooler today and see....also wouldnt I start to defuel at higher then 16psi?

[RadarRider]

Originally Posted by 2000excursion

no I dont....my tune is stock so shouldnt I only be able to make 16psi? Ill make a boost fooler today and see....also wouldnt I start to defuel at higher then 16psi?

You said your truck is losing power up to 26psi. Your truck will start defueling @ about 23-24.5psi. I think you just need a boost fooler.

[2000excursion]

boost fooler didnt help. What kind of software should I get for my in truck computer? I have PCMSCAN on it right now and it sucks.

[RadarRider]

Originally Posted by 2000excursion

boost fooler didnt help. What kind of software should I get for my in truck computer? I have PCMSCAN on it right now and it sucks.

You mean for diag, right?

[2000excursion]

well it does trouble codes fine but Id like to be able to see actual live datalogging and maybe tuning if available.