ODD thing on WOT with hot tune... - Ford Powerstroke Diesel Forum
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post #1 of 13 Old 10-04-2013, 09:40 PM Thread Starter
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ODD thing on WOT with hot tune...

I notice today on my 120hp tune from PHP during a few WOT runs it would go then stall for just a second, go then stall again for a second. I don't know if stall is the correct description, but it spools and rpms rise fast, but it slows for a second then goes again then slows again for a second then revs higher. It only does this on my 120hp tune. Is this a fueling issue or something? Any help would be appreciated.

My truck is an 02 ccsb, stock turbo, 4" dp and exhaust, intake, php hydra

Thanks
Dave
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post #2 of 13 Old 10-05-2013, 10:21 AM
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do you have gauges? If so how much boost does it do this at? sounds like its de fueling when over boosting. Do you get a check engine light turning on for a few moments during this?

-Vance-
.2002 f350 Lariat 4" lift w/ 35's. Hydra w/PHP. Swamps 175/146 injectors. gauges. banks power elbow, 4" dp 5"out,RiffRaffs FRX ww, ccv, AIH delete riff raff boost port, '10 tailgate mod amongst a bunch of other goods
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post #3 of 13 Old 10-05-2013, 10:31 AM
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If it does it only on the 120 tune I would have to imagine your 120 tune is no good. Which doesn't make me feel good about knowing I have a Hydra in the mail...
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post #4 of 13 Old 10-05-2013, 10:36 AM
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could be fuel related, hpop not keeping up...120race, i'd think, would demand alot.

99.5 x-cab 7.3l, 6spd, 161k miles.....
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post #5 of 13 Old 10-05-2013, 12:24 PM
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most people are still running the original Fuel pressure relief. the thing wears out in 100k miles and who knows what fuel pressure is unless you have a fp gauge. the brass poppet gets worn out, and the orings are shot.
not to mention some folks (my dad) never change their fuel filter

but your hpop could be having trouble keeping up as well.

php tunes are programmed to not defuel, they still set the light for overboost though.

99.5 f250 7.3 4x4 255k
PHP Phoenix, S&B, 4" Diamond Eye, Hpx, Stancor, RR Billet Wheel, RR AIH Delete, Autometer Gauges, Pro Comp leveled, Transgo Tugger, Billet TQ Converter, Warn Hubs, Int'l Up-Pipes, RR IC-Boots, Non-Ebpv Pedestal, High Flow Outlet, Hucorey's HPOP Lines, RR High Flow Fuel Fittings, RR OCR, Barder 360 Thrust Kit, 08 Tow Mirrors.

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post #6 of 13 Old 10-05-2013, 12:58 PM
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Quote:
Originally Posted by KillNThrill24 View Post
If it does it only on the 120 tune I would have to imagine your 120 tune is no good. Which doesn't make me feel good about knowing I have a Hydra in the mail...
This is not a hydra problem, this is an issue with the OP's truck having something that can not keep up with the demands of the tune. You should have no worries and be happy with your purchase. My 120 race tune works perfect, even the 140.

2001 F250 7.3 4x4 - Reg Cab, Long Bed

AFE Stage II intake, 4" turbo back exhaust, 4 gauge Isspro pillar, PHP Hydra Chip, 35" BFG All Terrains with Fox 2.0 Shox all around, 4" lift

PSN - Rowe


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post #7 of 13 Old 10-05-2013, 01:58 PM
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Quote:
Originally Posted by KillNThrill24 View Post
If it does it only on the 120 tune I would have to imagine your 120 tune is no good. Which doesn't make me feel good about knowing I have a Hydra in the mail...
Sorry...but I gotta say this...ONE Post about the 120 race tune on the hydra chip and you feel badly about it?

More than likely its related to the truck...not the tune

Sent from AutoGuide.com App

Nick
E99/CC/Lariat/Factory Wide Body Kit
"The Mistress"
Power Hungry Performance HYDRA Chip
Custom Tuned by Bill@PHP, Tony Wildman@Total Diesel Performance and Lars@Gearhead



D66 w/Dieselsite WW2, Full Force 250/100s, Adrenalin HPOP, Built Trans, Walbro Fuel Pump, S&B Intake, 6" Stacks, Leveling Kit, Eagle Alloy Wheels, 315/75/16 Grabber AT2s & Much More




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post #8 of 13 Old 10-05-2013, 06:04 PM Thread Starter
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I do have gauges but have not checked the fuel pressure yet. Fresh fuel filter. I see about 24psi on that tune. It spools really fast to 20psi and then slowly builds.

Don't talk bad about the Hydra. I love it and it's a great product. I was in no way blaming them. I'm sure it could be fueling related.

I will have to get a fuel pressure gauge and see what I'm at. Where should I be PSI wise?

Thanks

Dave
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post #9 of 13 Old 10-05-2013, 06:09 PM
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If you have the stock spring in there, 45-55 psi

Sent from AutoGuide.com App

Nick
E99/CC/Lariat/Factory Wide Body Kit
"The Mistress"
Power Hungry Performance HYDRA Chip
Custom Tuned by Bill@PHP, Tony Wildman@Total Diesel Performance and Lars@Gearhead



D66 w/Dieselsite WW2, Full Force 250/100s, Adrenalin HPOP, Built Trans, Walbro Fuel Pump, S&B Intake, 6" Stacks, Leveling Kit, Eagle Alloy Wheels, 315/75/16 Grabber AT2s & Much More




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post #10 of 13 Old 10-05-2013, 06:35 PM
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Quote:
Originally Posted by HVAC SuperTech View Post
If you have the stock spring in there, 45-55 psi

Sent from AutoGuide.com App
I've got a stock spring and I maintain 62-64 psi. Just make sure you don't get below 35 psi or that's no good for your injectors.

2001 F250 7.3 4x4 - Reg Cab, Long Bed

AFE Stage II intake, 4" turbo back exhaust, 4 gauge Isspro pillar, PHP Hydra Chip, 35" BFG All Terrains with Fox 2.0 Shox all around, 4" lift

PSN - Rowe


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