P0191 - All Suggestions Exhausted - F150online Forums

Go Back   F150online Forums > Powertrain & Mechanical > V8 Engines
Log In 

P0191 - All Suggestions Exhausted

Reply
 
 
 
 
Thread Tools Search this Thread
  #1  
Old 01-13-2010, 02:00 PM
Member
 
Join Date: Jul 2007
Location: Airdrie, Ab, Canada
Vehicle: 2004 Ford F150
Posts: 12
P0191 - All Suggestions Exhausted

Hi there,

got an 04 f150 fx4 5.4 3valve,

Throwing code p0191, been on the website last few days reading all the issues with it,

have replaced the fuel rail pressure sensor

have replaced the fuel pump driver modual behind the spare tire,

Fuel filter replaced with in 3000miles.

Problem still occurs, the EDGE program reads 40psi at idle, on the FRP but when in demand fuel pressure drops to 11 - 8 psi and engine acts as if it were stuck on a rev limiter.

Is there any last options to try before the trip to the stealership??

Thanks in advance

Jeff Stewart
Reply With Quote
  #2  
Old 01-13-2010, 02:54 PM
Member
 
Join Date: Jul 2007
Location: Airdrie, Ab, Canada
Vehicle: 2004 Ford F150
Posts: 12
Fuel injector clearner was done at the 3000mile fuel filter change.
Reply With Quote
  #3  
Old 01-13-2010, 04:01 PM
glc glc is offline
Senior Member
 
Join Date: Dec 2006
Location: Joplin MO
Vehicle: 2003 Ford F150
Posts: 32,250
Maybe a clogged sock filter on the fuel pump inside the tank?
__________________
2003 F-150 XL RCSB 2wd 4.2 M5OD 3.55 LS
Reply With Quote
  #4  
Old 01-15-2010, 11:48 PM
Member
 
Join Date: May 2008
Posts: 64
i bet its a fuel pump going bad on ya
Reply With Quote
  #5  
Old 01-15-2010, 11:53 PM
Technical Article Contributor
 
Join Date: Oct 2005
Location: MI
Vehicle: 1998 Ford F150 5.4L 4X4
Posts: 25,636
Run stock tune. Still there? Run stock tune, factory intake.

List all mods.
Reply With Quote
  #6  
Old 03-22-2011, 07:06 PM
Junior Member
 
Join Date: Jan 2008
Posts: 2
hello dear
how your problem was fixed i am in same boat i replaced fuel driver module all injectors fuel pump is arround six months old problem was fixed when i changed pump last time but again it started


Quote:
Originally Posted by arised View Post
Hi there,

got an 04 f150 fx4 5.4 3valve,

Throwing code p0191, been on the website last few days reading all the issues with it,

have replaced the fuel rail pressure sensor

have replaced the fuel pump driver modual behind the spare tire,

Fuel filter replaced with in 3000miles.

Problem still occurs, the EDGE program reads 40psi at idle, on the FRP but when in demand fuel pressure drops to 11 - 8 psi and engine acts as if it were stuck on a rev limiter.

Is there any last options to try before the trip to the stealership??

Thanks in advance

Jeff Stewart
Reply With Quote


 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
07 KR Whining Trans?? SSGT_B Transmissions 6 10-18-2015 05:53 PM
Tire and wheel suggestions with my bilstein 5100's brimc Wheels, Tires & Brakes 14 09-16-2015 10:46 AM
P0012, Different than most??? KwitcherBitchin 2004 - 2008 F-150 9 09-14-2015 07:17 PM
07 f-150 running rough u1cracka 2004 - 2008 F-150 8 09-08-2015 03:29 AM
Anyone from Central Wisconsin?? Schultzy34 Midwest 0 09-05-2015 05:40 AM


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



All times are GMT -4. The time now is 02:13 PM.


This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Fordé is a registered trademark of the Ford Motor Company