not enough fuel at upper rpms - Ford Powerstroke Diesel Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 14 Old 02-06-2012, 03:48 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Oct 2011
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
not enough fuel at upper rpms

Well this is my first time posting but I have been lurking for a few months.


Heres my problem I bought my ts 6pos tuner and exhaust and installed them both 2weeks ago. I thought everything was great then I noticed up top around 2500-3000 it feels like its not getting enough fuel. I turned it to my smoke setting and WOW it was fast no hesitations at all.
I did a buzz test and every injector came back fine. changed the fuel filter still no change. I replaced the lift pump back in Oct. I am going to test the fuel pressure tomorrow to see if I have enough psi it should be between 55-75?

When I ran the scanner I got a code p0196 but I am going to double check to make sure my truck was at operating temp to be safe. Forgot to mention I got my chip for KT performance which is a great place Kenny is a good guy.

Thanks for any help
Joe

1997 f250 cc sb 4x4 TS 6 pos, Diamond eye 5 inch
Gauges coming soon
bigrd1990 is offline  
post #2 of 14 Old 02-07-2012, 08:16 AM Thread Starter
Powerstroke.org Rookie
 
Join Date: Oct 2011
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
anyone? know

1997 f250 cc sb 4x4 TS 6 pos, Diamond eye 5 inch
Gauges coming soon
bigrd1990 is offline  
post #3 of 14 Old 02-07-2012, 01:22 PM
Powerstroke.org Fanatic
 
Join Date: Nov 2011
Posts: 110
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
your pressure should be somewhere in that range when you test it.

Im confused....you have a ts chip with a smoke tune? or someone else tuned it?
Dannj is offline  
post #4 of 14 Old 02-07-2012, 03:36 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Oct 2011
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
well tested the fuel pressure and it was all over the place. the needle was jumping from 40psi to 90psi at idle. I am so lost could it be a bad fpr? I know the previous owner did the fpr mod with the bb.

I bought the ts chip with I believe phoenix tunes

one other thing could feel the fuel pulsating through the fuel pressure gauge.

1997 f250 cc sb 4x4 TS 6 pos, Diamond eye 5 inch
Gauges coming soon
bigrd1990 is offline  
post #5 of 14 Old 02-07-2012, 08:58 PM
Compression Ignition Addict
 
Join Date: Mar 2011
Location: Houston, Tx
Posts: 1,888
Thanks: 4
Thanked 74 Times in 74 Posts
Mentioned: 0 Post(s)
Quoted: 41 Post(s)
Feedback Score: 0 reviews
Your pump could be going bad. Is it stock injectors?

I would highly recommend giving your fuel bowl a good cleaning with new hoses and o-rings. Before adding a tuner or doing any mods I recommend doing the basic clean out and check over first to make sure you're good to go.
White95f250 is offline  
post #6 of 14 Old 02-08-2012, 12:50 AM Thread Starter
Powerstroke.org Rookie
 
Join Date: Oct 2011
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Stock injectors. I put new hoses on when I replaced the pump.

1997 f250 cc sb 4x4 TS 6 pos, Diamond eye 5 inch
Gauges coming soon
bigrd1990 is offline  
post #7 of 14 Old 02-08-2012, 01:22 AM Thread Starter
Powerstroke.org Rookie
 
Join Date: Oct 2011
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I mean could the pump be going bad or has been bad and didnt know it?

Could algae be a cause for this?

Im trying to think of anything/everything at this point now.

1997 f250 cc sb 4x4 TS 6 pos, Diamond eye 5 inch
Gauges coming soon
bigrd1990 is offline  
post #8 of 14 Old 02-08-2012, 03:24 PM
Powerstroke.org Fanatic
 
Join Date: Nov 2011
Posts: 110
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
the funny part is i answered you and today my truck started doing the same exact thing....weird idle and fuel pressure jumping all over. i have my spring shimmed too.....its snowing here in nj n im done messing around in the cold. im gonna mess with it tomorrow some more. my bet is its my fuel pump not being able to keep up.
Dannj is offline  
post #9 of 14 Old 02-08-2012, 03:31 PM
Doesn't Even Care


 
HVAC SuperTech's Avatar
 
Join Date: Sep 2007
Location: Fletcher, NC
Posts: 18,045
Thanks: 105
Thanked 139 Times in 134 Posts
Mentioned: 2 Post(s)
Quoted: 69 Post(s)
Feedback Score: 0 reviews
Could also be the screen or the sock on the bottom of the fuel pickup in the tnak that's clogged up. I have heard of these things causing big issues like this once higher fuel is demanded from chips

Sent from my Acer Android Tablet

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




HVAC SuperTech is offline  
post #10 of 14 Old 02-08-2012, 04:00 PM
Full A-Team Member
 
Fordman247365's Avatar
 
Join Date: Dec 2008
Location: Phillips, WI
Posts: 6,407
Thanks: 3
Thanked 5 Times in 5 Posts
Mentioned: 1 Post(s)
Quoted: 1 Post(s)
Feedback Score: 1 reviews
Are you sure its running out of fuel...or is it just running bad at higher rpm's? Does it do it in all the chip positions?

The fluctuation in the fuel pressure is because its a mechanical pump.

Elmo/Shane

96 F350 4x4
Everything.
And its expensive.

476,000 Miles


"100% worked for, 100% paid for"
Fordman247365 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