low rail pressure help.. - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

User Tag List

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 15 Old 10-18-2010, 11:37 PM Thread Starter
Compression Ignition Addict
 
KTMotoRider1's Avatar
 
Join Date: Feb 2009
Posts: 270
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
low rail pressure help..

I ran into some trouble and Im hoping that im not gonna have to make a trip to the dealer cause its surely not going to be covered under warranty they have seen my truck to many times with all the go fast parts on it..anyways earlier today I was towing 10,000 lbs on the spartan 175 enhanced tune (freeway driving) and expirienced a low fuel rail pressure code (I honestly dont exacty know when or how it happened I just noticed low power shortly after a WOT pull up a steep grade) and it seemed to throw my truck into some kind of limp mode where I couldnt make much boost or power I dont know if this was due to an actual limp mode or if it was being caused by continuing low rail pressure..I was not monitering my FRP when this happened so I dont know. I pulled over and looked under the hood for anything abnormal and found nothing I got back in the truck and fired it up and the problem was gone. The truck now maintains 24,500psi at full throttle which is perfect..at idle it maintains 5,000psi which again as I understand is right on the money. This is the first time this has happened to me Ive towed and drag raced many times on the race tunes and even then this didnt happen. What are your thoughts? I have a TS-mp8 stacked with my spartan (its a fuel pressure box) and I was running it at the time this occured..I have run this setup for awhile now and have never had a problem.. Ive actually been very pleased and would diffenetly reccomend but I am calling it into question. If you have any questions about my mods just check my sig! Im hoping this is a fluke

Ford F250 6.4 CC/SB, Spartan 350 w/TCM, Mag-Hytec deep pan, Flo-Pro 5 inch Exhaust, AFE stage 2 with ProDRy, 2.5 Readylift, ZEX Nitrous single stage, BD CAC pipe, ATS 5-star converter, elite egr delete/wastegate, ts mp-8 stacked, Procomp traction bars, locker, CFM plenum, ARP studs. Innovative tunes and Suncoast on the way!
KTMotoRider1 is offline  
post #2 of 15 Old 10-18-2010, 11:47 PM Thread Starter
Compression Ignition Addict
 
KTMotoRider1's Avatar
 
Join Date: Feb 2009
Posts: 270
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
This also seems awful strange to be happening on the 175 tune...not much fuel in that tune..like theres something wrong with the truck

Ford F250 6.4 CC/SB, Spartan 350 w/TCM, Mag-Hytec deep pan, Flo-Pro 5 inch Exhaust, AFE stage 2 with ProDRy, 2.5 Readylift, ZEX Nitrous single stage, BD CAC pipe, ATS 5-star converter, elite egr delete/wastegate, ts mp-8 stacked, Procomp traction bars, locker, CFM plenum, ARP studs. Innovative tunes and Suncoast on the way!
KTMotoRider1 is offline  
post #3 of 15 Old 10-18-2010, 11:47 PM
Compression Ignition Addict
 
Join Date: Jan 2010
Location: Galveston, TX
Posts: 202
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
The Code is P0087 and it's most likely your high pressure fuel pump but it could also be the controller. If it's the hpfp then it's a cab off operation. I know this because I just dropped my truck off today and I had the exact symptoms as you. If you are located anywhere near Houston my diesel tech will take care of you and not report your truck in oasis.

this is from my thread about this:
I just got off the phone with my Ford diesel tech and it looks like my hpfp may be going out (P0087 coming back on after wot). He said not to worry about my programmer, just bring it in and he'll warranty everything that is wrong. I've also lost about 4 gallons of coolant on the driveway too. This is the same tech that warrantied my transmission at 30k when it went out.

He said the cab will come off if its the hpfp. I asked about him doing an egr delete and possibly studs while the cab is off. He said that wouldn't be a problem, that we'll discuss that on the side. What else should I do to the truck while the cab is off? Not looking at spending 10,000 on fuel and turbos, just longevity inducing mods. I plan on keeping this truck for years and need it to remain my reliable dd.

2003 F150 Lightning- Whipple 3.4l 659rwhp 711rwtq @18psi on 93

2008 F250 FX4- afe stage II, 5" Flo Pro, Elite- egr delete/wastegate/4" downpipe/cfm+/ported fuel rails
Innovative XRace-12.81@103.9; H&S Hot Damn- 13.13 @ 101.4 556 rwhp (Traded In)

2011 F150 King Ranch- Custom Status Air Suspension, 3-link (lays frame)
REDL1NE is offline  
post #4 of 15 Old 10-19-2010, 09:05 AM Thread Starter
Compression Ignition Addict
 
KTMotoRider1's Avatar
 
Join Date: Feb 2009
Posts: 270
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
is there any other possibilities or am I ****ed on this one?

Ford F250 6.4 CC/SB, Spartan 350 w/TCM, Mag-Hytec deep pan, Flo-Pro 5 inch Exhaust, AFE stage 2 with ProDRy, 2.5 Readylift, ZEX Nitrous single stage, BD CAC pipe, ATS 5-star converter, elite egr delete/wastegate, ts mp-8 stacked, Procomp traction bars, locker, CFM plenum, ARP studs. Innovative tunes and Suncoast on the way!
KTMotoRider1 is offline  
post #5 of 15 Old 10-19-2010, 12:08 PM
Compression Ignition Addict
 
Join Date: Jan 2010
Location: Galveston, TX
Posts: 202
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I'll let you know my diagnosis whenever I'm informed.

2003 F150 Lightning- Whipple 3.4l 659rwhp 711rwtq @18psi on 93

2008 F250 FX4- afe stage II, 5" Flo Pro, Elite- egr delete/wastegate/4" downpipe/cfm+/ported fuel rails
Innovative XRace-12.81@103.9; H&S Hot Damn- 13.13 @ 101.4 556 rwhp (Traded In)

2011 F150 King Ranch- Custom Status Air Suspension, 3-link (lays frame)
REDL1NE is offline  
post #6 of 15 Old 10-19-2010, 01:51 PM
Compression Ignition Addict


 
08stroker250's Avatar
 
Join Date: Dec 2008
Location: Georgia
Posts: 8,819
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 5
Thanked 16 Times in 15 Posts
Feedback Score: 0 reviews
Take that MP-8 off and see what happens....

Jeff Dodd
spartan_jeff12@yahoo.com

2012 Ford F-250 Lariat CC/SB

Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
08stroker250 is offline  
post #7 of 15 Old 10-20-2010, 12:43 AM Thread Starter
Compression Ignition Addict
 
KTMotoRider1's Avatar
 
Join Date: Feb 2009
Posts: 270
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
ok yeah I did a few more WOT runs again today and everything is going ok dzchey seems to think that it was a glitch with the mp8 i thinking thats probably what it was...If i get the code 2 more times im gonna take it in

Ford F250 6.4 CC/SB, Spartan 350 w/TCM, Mag-Hytec deep pan, Flo-Pro 5 inch Exhaust, AFE stage 2 with ProDRy, 2.5 Readylift, ZEX Nitrous single stage, BD CAC pipe, ATS 5-star converter, elite egr delete/wastegate, ts mp-8 stacked, Procomp traction bars, locker, CFM plenum, ARP studs. Innovative tunes and Suncoast on the way!
KTMotoRider1 is offline  
post #8 of 15 Old 10-20-2010, 06:22 AM
Compression Ignition Addict
 
Join Date: Jan 2010
Location: Galveston, TX
Posts: 202
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by KTMotoRider1 View Post
ok yeah I did a few more WOT runs again today and everything is going ok dzchey seems to think that it was a glitch with the mp8 i thinking thats probably what it was...If i get the code 2 more times im gonna take it in
I've been having the code flash on several times over the last month. I'm not sure how long it would have lasted by just clearing the code when it came on and driving on.

I still haven't heard the verdict on what was wrong with my truck but my tech has already said he is for sure replacing the hpfp

2003 F150 Lightning- Whipple 3.4l 659rwhp 711rwtq @18psi on 93

2008 F250 FX4- afe stage II, 5" Flo Pro, Elite- egr delete/wastegate/4" downpipe/cfm+/ported fuel rails
Innovative XRace-12.81@103.9; H&S Hot Damn- 13.13 @ 101.4 556 rwhp (Traded In)

2011 F150 King Ranch- Custom Status Air Suspension, 3-link (lays frame)
REDL1NE is offline  
post #9 of 15 Old 10-20-2010, 08:46 AM Thread Starter
Compression Ignition Addict
 
KTMotoRider1's Avatar
 
Join Date: Feb 2009
Posts: 270
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
alright yeah keep us posted on the verdict

Ford F250 6.4 CC/SB, Spartan 350 w/TCM, Mag-Hytec deep pan, Flo-Pro 5 inch Exhaust, AFE stage 2 with ProDRy, 2.5 Readylift, ZEX Nitrous single stage, BD CAC pipe, ATS 5-star converter, elite egr delete/wastegate, ts mp-8 stacked, Procomp traction bars, locker, CFM plenum, ARP studs. Innovative tunes and Suncoast on the way!
KTMotoRider1 is offline  
post #10 of 15 Old 10-20-2010, 08:04 PM
Compression Ignition Addict
 
Join Date: Dec 2006
Posts: 229
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Are you stacking the MP-8 on the Spartan tune? If so, why would you add a pressure/timing box on top of Spartans timing and fuel pressure modifications? As Jeff stated earlier I would remove the MP-8.
First_Ford is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome