Fuel Pressure question - Mustang Evolution

Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1996-2004 Mustang GT



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 12-14-2014, 12:20 PM   #1
Registered Member
Regular
 
xfree143's Avatar
 
Join Date: Apr 2014
Posts: 55
Fuel Pressure question

Anyone know what fuel pressure I should have with a pro charger on my 99 GT?


Sent from my iPad using Mustang Evolution
xfree143 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-15-2014, 06:48 PM   #2
Registered Member
Regular
 
Panther140's Avatar
 
Join Date: Sep 2014
Location: xxx
Region: Other
Posts: 1,473
Wouldn't it depend on your tune? Id imagine you could run it at 35 PSI and be fine if you tune the ECU for that, but you would have to make sure that your fuel pump can maintain 35PSI at maximum duty cycle. Once again though, I am talking out of my ***!
Panther140 is offline   Reply With Quote
Old 12-15-2014, 08:32 PM   #3
Registered Member
Regular
 
xfree143's Avatar
 
Join Date: Apr 2014
Posts: 55
I'm running 40psi but it is randomly loosing pressure to 6lbs. I have to shut the car down then start it again and it's fine. It may go a day or two before it does it again. It's driving me nuts, I have changed the fuel filter and the fuel pressure sensor at the rail but it's still doing it.


Sent from my iPad using Mustang Evolution
xfree143 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-15-2014, 08:40 PM   #4
Registered Member
Regular
 
Panther140's Avatar
 
Join Date: Sep 2014
Location: xxx
Region: Other
Posts: 1,473
Quote:
Originally Posted by xfree143 View Post
I'm running 40psi but it is randomly loosing pressure to 6lbs. I have to shut the car down then start it again and it's fine. It may go a day or two before it does it again. It's driving me nuts, I have changed the fuel filter and the fuel pressure sensor at the rail but it's still doing it.


Sent from my iPad using Mustang Evolution
When it does that, leave the key on and test points with a voltmeter. Maybe even with the engine running. I would check before and after the relay and before and after the fuel pressure regulator. Also test right before the fuel pump. Maybe check the fuse in the box. Ive had light bulbs and fuses "go bad" but still sometimes work for no reason. That might tell you a lot. That's what I would do. Otherwise you can get your parts shotgun out and start replacing **** lol.
Panther140 is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1996-2004 Mustang GT

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
need help with custom fuel rails, fittings, fuel pressure gauge tire Pre-2005 V6 Mustang 2 07-13-2015 04:32 PM
fuel pressure question Jar72 1979-1995 Mustang GT 1 02-02-2014 11:56 AM
fuel line pressure vs rail pressure Sirtat 2005-2010 Mustang GT 2 01-10-2012 06:03 PM
Fuel pressure guage questions eagle05 1979-1995 Mustang GT 4 10-25-2006 05:47 AM
No schrader valve on 05s for wet N2O or Fuel Pressure guage justin00stang 1996-2004 Mustang GT 1 11-17-2005 09:08 AM

» Like Us On Facebook



11:22 PM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.