P0401-P0171-P0174 default code on my 98 f150 5.4l - FordTough.ca - Home of Canadian Ford Truck Enthusiasts
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 28 (permalink) Old 12-27-2013, 11:48 AM Thread Starter
 
volvering's Avatar
 
Join Date: Jan 2013
Location: dampicourt-belgium
Posts: 139
P0401-P0171-P0174 default code on my 98 f150 5.4l

hello all,

today my wife come back of work whith the ford and have some trouble,the engine don't run good.

i put my ass in it i starded engine and it run good after 30 seconds the engine don't run good like one or a lot of the cylinder misfire....

i put my obd code reader in it and he gave's me

P0401 Egr flow insufficient
P0171 System too lean bank 1
P0172 system too lean Bank 2

for it's a problem with bensine?? i'm not sure of that...
What i'm looking for in first ? EGR or others?

it's not very easy for me to explan it.....

volvering...
volvering is offline  
Sponsored Links
Advertisement
 
post #2 of 28 (permalink) Old 12-27-2013, 12:08 PM
 
BlairTruck's Avatar
 
Join Date: Apr 2008
Location: Edmonton, Alberta
Posts: 2,354
vacuum leak?



Really? Its the Internet take it easy.
BlairTruck is offline  
post #3 of 28 (permalink) Old 12-27-2013, 02:08 PM Thread Starter
 
volvering's Avatar
 
Join Date: Jan 2013
Location: dampicourt-belgium
Posts: 139
Quote:
Originally Posted by BlairTruck View Post
vacuum leak?
i don't know here it's night ...i fix it tomorow morning...

if no vaccum leak what are looking for after vaccum leak ?
volvering is offline  
 
post #4 of 28 (permalink) Old 12-28-2013, 12:08 PM Thread Starter
 
volvering's Avatar
 
Join Date: Jan 2013
Location: dampicourt-belgium
Posts: 139
hello all,

i'll check vaccum leak with a brake cleaner and the engine react when i spray on the rear of trottle body..tomorow i go to fix it...

but not easy when the engine is cold he run great....
volvering is offline  
post #5 of 28 (permalink) Old 12-29-2013, 05:36 AM Thread Starter
 
volvering's Avatar
 
Join Date: Jan 2013
Location: dampicourt-belgium
Posts: 139
hello all,
Now i look for fix a vaccum leak....and no leak nad no error code on obd..that's crazy.

Since I have my truck the rpm is around 1000 rpm and move to 1200 itself...

and now the rpm down to 700 rpm (sound good but not normal?)

What do you think about it..because my wife need the truck for working..and i don't know if it's good for the truck.

In drive the engine run like good....but now i don't know how is good or not....
volvering is offline  
post #6 of 28 (permalink) Old 12-29-2013, 06:47 AM
 
Destructicon's Avatar
 
Join Date: Mar 2010
Location: Stoney Creek, Ontario
Posts: 1,524
Garage
That's about what it should be. It should start high, about 1000~1200 rpm, then drop to 700 rpm after about half a minute. If it runs smooth while driving, then it sounds like you've fixed it.

Electrician, powered by Tim Hortons, brought to you by Ford. Java Inside!
The Past - 1976 F-350 Crew Cab 1992 - 2006 RIP
The Past - 1995 F-150 XL Enforcer All Gear Drive 2008 - 2015
The Present - 1993 F-250 XLT Turbo Diesel Super Cab 4x4 2015 - ?
The Future - Who knows?
Destructicon is offline  
post #7 of 28 (permalink) Old 12-29-2013, 08:08 PM Thread Starter
 
volvering's Avatar
 
Join Date: Jan 2013
Location: dampicourt-belgium
Posts: 139
okk but per moments the rpm down to 250...and not very good...the engien run like 1 or 2 cylinder missfire...
volvering is offline  
post #8 of 28 (permalink) Old 12-30-2013, 05:40 AM
 
Destructicon's Avatar
 
Join Date: Mar 2010
Location: Stoney Creek, Ontario
Posts: 1,524
Garage
Check the fuel pressure. You may need a fuel filter or fuel pump.

Electrician, powered by Tim Hortons, brought to you by Ford. Java Inside!
The Past - 1976 F-350 Crew Cab 1992 - 2006 RIP
The Past - 1995 F-150 XL Enforcer All Gear Drive 2008 - 2015
The Present - 1993 F-250 XLT Turbo Diesel Super Cab 4x4 2015 - ?
The Future - Who knows?
Destructicon is offline  
post #9 of 28 (permalink) Old 12-30-2013, 12:05 PM Thread Starter
 
volvering's Avatar
 
Join Date: Jan 2013
Location: dampicourt-belgium
Posts: 139
that's i think to but when i drive and need power the engine gave me what i wan't..it's around 1000-1500 rpm the problem arrived not on higher RPM.
volvering is offline  
post #10 of 28 (permalink) Old 12-30-2013, 07:11 PM
 
Destructicon's Avatar
 
Join Date: Mar 2010
Location: Stoney Creek, Ontario
Posts: 1,524
Garage
Idle air motor?

Electrician, powered by Tim Hortons, brought to you by Ford. Java Inside!
The Past - 1976 F-350 Crew Cab 1992 - 2006 RIP
The Past - 1995 F-150 XL Enforcer All Gear Drive 2008 - 2015
The Present - 1993 F-250 XLT Turbo Diesel Super Cab 4x4 2015 - ?
The Future - Who knows?
Destructicon is offline  
Reply

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



Similar Threads
Thread Thread Starter Forum Replies Last Post
F150 - OBD CODE 1288 garymac221 F-150 2004 to 2008 Forum 3 10-20-2010 02:58 PM
Service Engine soon, DTC #p0171, p0174 gt40 Excursion, Expedition, Navigator, Bronco, Explorer, Escape, Flex, Edge 3 12-06-2009 01:15 PM
Code Help Ill Named F-150 2004 to 2008 Forum 5 05-04-2009 08:53 PM
Engine code blueghost F-150 2004 to 2008 Forum 3 05-22-2008 12:42 PM
Airbag,code 27 blueghost F-150 2004 to 2008 Forum 1 05-16-2008 10:16 PM

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 On
Pingbacks are On
Refbacks are On

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