obd codes & stumbling - TCCoA Forums
 
LinkBack Thread Tools
post #1 of 4 (permalink) Old 06-12-2011, 09:56 PM Thread Starter
2nd Gear Poster
 
Join Date: Jun 2011
Location: Harrington Park, NJ
Age: 30
Posts: 87
obd codes & stumbling

i keep getting codes p0171 and p0174. was told it was a PCV leak somewhere. i cant seem to find anything broken or leaking..

also, my car stumbles under acceleration, seems like it wants to backfire, i replaced the TPS and cleaned up the TB and MAF. did a tune up as well.

any ideas on what may fix my problems?
blackbird95lx is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 06-12-2011, 10:14 PM
Seasoned PostWhore
 
theterminator93's Avatar
 
Join Date: Jan 2009
Location: North Ridgeville, Ohio
Age: 31
Posts: 9,062
Garage
The codes indicate both banks are too lean. You mentioned you already cleaned the MAF; good start. Did you clean it per the tech articles or just spray it with cleaner?

The next step I'd say would be to check for vacuum leaks and replace the fuel filter.

-Brandon
97 Laser Red Thunderbird LX 162k, Stage 2 4.6L 2v N/A | 300 BHP (255 RWHP, 290 RWTQ) | 13.95 @ 97.58 | Build details | Pics at the Lorain Assembly plant
98 Black Mark VIII 160k, stock daily driver
07 Redfire Fusion V6 SEL 178k, for the wife
Gone but not forgotten: 96 Mark VIII, 94 Cougar XR7, 93 Mark VIII

TCCoA's resident pilot since 2014
Once you have tasted flight, you will walk the world with your eyes turned skyward, for there you have been and there you long to return. -Leonardo da Vinci
theterminator93 is offline  
post #3 of 4 (permalink) Old 06-14-2011, 05:49 PM Thread Starter
2nd Gear Poster
 
Join Date: Jun 2011
Location: Harrington Park, NJ
Age: 30
Posts: 87
cleaned it the right way. i dont screw around with any of my cars.

i couldnt find any leaks that i saw atleast. FF is gettin changed tonight.
blackbird95lx is offline  
Sponsored Links
Advertisement
 
post #4 of 4 (permalink) Old 07-10-2011, 02:51 PM
6th Gear Poster
 
pettyfog's Avatar
 
Join Date: Jun 2011
Location: Springfield OH
Age: 76
Posts: 613
Ever find out what the problem was? The best test to see if it's the PCV valve is to replace it. But at the least it should rattle.

I learn more about cars every day!
I do it just because I still want to know HOW and WHY!!! Quit learning=die. Be informed as to WHAT, rather than learn,=brain-dead already.
__________________________________________
1993 Silver LX 3.8L My Bravadiva's 'go store-fetch me parts' girl
pettyfog is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the TCCoA Forums 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











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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

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