Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Modular V8 (4.6L, 5.4L)
Sign in using an external account
Register Forgot Password?


Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 06-16-2014, 01:23 PM
Bartramk Bartramk is offline
New User
 
Join Date: Jun 2014
Posts: 8
Bartramk is starting off with a positive reputation.
Plz need help with a 4.6

I have a 2001 f150 it stumbles on take off and in regular drive gear. I've changed spark plugs and all coils are working fine. I'm getting a couple of codes on the scanner one is p1408 EGR flow out of range. It has a brand new EGR valve on it. Secondly it's showing p1131 h025 bank 1 sensor indicates lean. I don't know what to do no cat codes or misfire codes what does all of this mean?
Reply With Quote
  #2  
Old 07-25-2014, 11:44 AM
Coondawg Coondawg is offline
Senior User
 
Join Date: Jan 2003
Location: Saraland AL
Posts: 216
Coondawg is starting off with a positive reputation.
Try cleaning the throttle body and maf
sensor.
__________________
2005 F-150 STX Stepside 4.6L 4X4
Reply With Quote
  #3  
Old 08-12-2014, 01:18 PM
Driver Jim Driver Jim is offline
Freshman User
 
Join Date: Jul 2014
Location: Denver, CO
Posts: 35
Driver Jim is starting off with a positive reputation.
For the EGR:

It's vacuum modulated, so I'd look at the tubing to make sure it seals properly/nothing was broken when the valve was changed. If the vacuum reaching the EGR is wrong, the valve won't open properly.

Actually, as I re-read your post I'd most definitely look at the vacuum modulator tubing as a leak will suck in air unaccounted for by the MAP/MAF, thus leaning the air/fuel mixture. Bank 1 is the one through four cylinders on the passenger side, which is where the tubing for the EGR vacuum originates.
Reply With Quote
Old 08-12-2014, 01:18 PM
Reply

Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Modular V8 (4.6L, 5.4L)

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Annoying P0401 Code Towzilla 6.0L Power Stroke Diesel 23 04-17-2014 10:57 PM
6.4L Low Power- P0488 EGR Throttle Plate Codes makuloco2000 6.4L Power Stroke Diesel 6 01-21-2014 09:27 AM
6.4L Low Power- P0488 EGR Throttle Plate Codes makuloco2000 Super Duty & Heavy Duty 0 01-17-2014 07:06 AM
egr delete/p0401 ballbandit 6.0L Power Stroke Diesel 7 05-22-2013 07:52 AM
2004 explorer egr clean out wtroger Explorer, Sport Trac, Mountaineer & Aviator 0 11-30-2012 09:51 AM



All times are GMT -5. The time now is 06:00 PM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
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. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup