Volvo AWD V70-XC70 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 3/2004 V70-XC70 INDEX

[<<] [>>]

VIEW

REPLY TO THIS MESSAGE

SAVE

Code P0171- too lean, long term fuel trim 23% V70-XC70 2001

posted by jadnhm on Thu Aug 19 01:18 CST 2010
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS]

[IGNORE ALL POSTS]

last visit: Tue May 22 18:03 CST 2012

[RELATED]

Your front O2 sensor could well be ruined from the rich condition you had earlier.

You can take it out and test it by mounting it in a vise and using a propane torch to heat it up. You should be able to find instructions on how to do that on this board or another. Your OBD-II scanner might give you a readout of the sensor values as well which could help you determine if it's getting tired. If your mileage is up over 100k miles and you're pretty sure it's original it's probably time for a new one anyway.

Before replacing your O2 sensor though, you really need to make sure your fuel mixture is in top condition.

Be SURE all vac/PCV leaks are fixed. Butane is a good way to check. A smoke machine is better.
http://www.fiero.nl/forum/Forum1/HTML/081547.html

Reset your long-term fuel trim by following this article:
http://www.matthewsvolvosite.com/forums/viewtopic.php?f=5&t=21123&start=0

Clean the carbon from your intake with a water treatment and seafoam treatment.

Then take if for a nice long hot run to move oil through every passageway and spin those valves.

--
1998 V70 AWD->FWD Turbo 200k+

THREADED

THREADED EXPANDED

FLAT

PRINT ALL

MESSAGES IN THIS THREAD

Code P0171- too lean, long term fuel trim 23% [V70-XC70][2001]
posted by Jorgan on Wed Aug 18 23:34 CST 2010 >

Code P0171- too lean, long term fuel trim 23% [V70-XC70][2001]
posted by jadnhm subscriber on Thu Aug 19 01:18 CST 2010 > V
- Code P0171- too lean, long term fuel trim 23% [V70-XC70][2001]
  posted by Jorgan on Thu Aug 19 17:33 CST 2010 > V
  - Code P0171- too lean, long term fuel trim 23% [V70-XC70][2001]
    posted by jadnhm subscriber on Fri Aug 20 01:00 CST 2010 > V
    - Code P0171- too lean, long term fuel trim 23% [V70-XC70][2001]
      posted by Jorgan on Fri Aug 20 13:49 CST 2010 > V
      - Code P0171- too lean, long term fuel trim 23% [V70-XC70][2001]
        posted by jadnhm subscriber on Sun Aug 22 01:13 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% [V70-XC70][2001]
        posted by Jorgan on Sun Aug 22 23:55 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% [V70-XC70][2001]
        posted by jadnhm subscriber on Tue Aug 24 04:03 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% [V70-XC70][2001]
        posted by Jorgan on Mon Aug 30 19:13 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - New O2 sensor [V70-XC70][2001]
        posted by Jorgan on Tue Aug 31 19:21 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - New O2 sensor [V70-XC70][2001]
        posted by Jorgan on Tue Sep 7 20:36 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - New O2 sensor [V70-XC70][2001]
        posted by tmannian on Wed Sep 8 02:50 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - New O2 sensor [V70-XC70][2001]
        posted by jadnhm subscriber on Wed Sep 8 03:19 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - New O2 sensor [V70-XC70][2001]
        posted by tmannian on Wed Sep 8 03:30 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - Chasing fuel. [V70-XC70][2001]
        posted by Jorgan on Wed Sep 8 06:27 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - Chasing fuel. [V70-XC70][2001]
        posted by tmannian on Wed Sep 8 08:22 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - Chasing fuel. [V70-XC70][2001]
        posted by Jorgan on Wed Sep 8 21:11 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - Chasing fuel. [V70-XC70][2001]
        posted by tmannian on Thu Sep 9 02:34 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - Did the injectors. [V70-XC70][2001]
        posted by Jorgan on Sun Sep 26 00:25 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - Did the injectors. [V70-XC70][2001]
        posted by alschnertz subscriber on Sun Sep 26 02:34 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - Did the injectors. [V70-XC70][2001]
        posted by KlausC subscriber on Sun Sep 26 04:16 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - Did the injectors. [V70-XC70][2001]
        posted by tmannian on Sun Sep 26 07:09 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - Did the injectors. [V70-XC70][2001]
        posted by Jorgan on Wed Sep 29 22:45 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - Did the injectors. [V70-XC70][2001]
        posted by Jorgan on Sun Oct 3 00:56 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - Did the injectors. [V70-XC70][2001]
        posted by tmannian on Sun Oct 3 08:36 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - Did the injectors. [V70-XC70][2001]
        posted by Jorgan on Fri Oct 8 00:36 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - Did the injectors. [V70-XC70][2001]
        posted by tmannian on Sat Oct 9 02:20 CST 2010 > V
        
        Code P0171- too lean, long term fuel trim 23% - New O2 sensor [V70-XC70][2001]
        posted by jadnhm subscriber on Wed Sep 8 06:54 CST 2010 > V
        
        United Statesians [V70-XC70][2001]
        posted by KlausC subscriber on Mon Aug 23 05:41 CST 2010 > V
        
        United Statesians [V70-XC70][2001]
        posted by tmannian on Wed Sep 8 02:34 CST 2010 > V

<< < > >>

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.

Volvo AWD/V70-XC70 Forum Index

Community Forums:

RWD

AWD

GATHERINGS

OPINIONS

PICKNPULL

V8

STORIES

Classifieds

Site Features

RWD Series/Models

AWD Series/Models

Volvo AWD V70-XC70 Forum

Code P0171- too lean, long term fuel trim 23% V70-XC70 2001