Welcome to the North American Subaru Impreza Owners Club Thursday March 28, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Engine Management & Tuning > AccessPort

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, 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 free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 10-02-2013, 06:30 PM   #1
Pipp_Pipp
Scooby Newbie
 
Member#: 368699
Join Date: Sep 2013
Chapter/Region: South East
Vehicle:
2004 18g 23psi WRX
Custom tune

Default Error codes say whaa?

My check engine light keeps coming on. And it says this. Can someone tell me what this means in English...

"P0171 system too mean (bank 1)"

"P1096 tumble generator valve #2 (open circuit)"

"P1094 tumble generator valve #1(open circuit)"
* Registered users of the site do not see these ads.
Pipp_Pipp is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 10-02-2013, 06:34 PM   #2
Chicago AJ
Scooby Specialist
 
Member#: 353343
Join Date: Apr 2013
Chapter/Region: MWSOC
Location: Suburb of Chicago
Vehicle:
'13 WRX Sedan Stg 3
'13 Prius C 86mpg!

Default

You sure it's not, "system too lean?"
Chicago AJ is offline   Reply With Quote
Old 10-02-2013, 06:51 PM   #3
Pipp_Pipp
Scooby Newbie
 
Member#: 368699
Join Date: Sep 2013
Chapter/Region: South East
Vehicle:
2004 18g 23psi WRX
Custom tune

Default

Yeah. I meant to say "lean"
Pipp_Pipp is offline   Reply With Quote
Old 10-02-2013, 07:11 PM   #4
Chicago AJ
Scooby Specialist
 
Member#: 353343
Join Date: Apr 2013
Chapter/Region: MWSOC
Location: Suburb of Chicago
Vehicle:
'13 WRX Sedan Stg 3
'13 Prius C 86mpg!

Default

Could you post some car details; model, year, mods. That'd be a good start.
Chicago AJ is offline   Reply With Quote
Old 10-02-2013, 07:34 PM   #5
Blackfin
Scooby Specialist
 
Member#: 361325
Join Date: Jul 2013
Chapter/Region: E. Canada
Location: Ontario
Vehicle:
2010 STi
Dark Gray Metallic

Default

More details would be nice.

How old is the front O2 sensor?

Does the car have TGV deletes and if so what was done with the electrical connectors?
Blackfin is offline   Reply With Quote
Old 10-03-2013, 07:47 AM   #6
Pipp_Pipp
Scooby Newbie
 
Member#: 368699
Join Date: Sep 2013
Chapter/Region: South East
Vehicle:
2004 18g 23psi WRX
Custom tune

Default

Woops. Sorry guys still kinda new to this.

It's a 2004 Wrx, down pipe, catless exhaust, 650 injectors. Apexi intake. Front mount and that's pretty much it.
Pipp_Pipp is offline   Reply With Quote
Old 10-03-2013, 07:49 AM   #7
Pipp_Pipp
Scooby Newbie
 
Member#: 368699
Join Date: Sep 2013
Chapter/Region: South East
Vehicle:
2004 18g 23psi WRX
Custom tune

Default

Quote:
Originally Posted by Blackfin View Post
More details would be nice. How old is the front O2 sensor? Does the car have TGV deletes and if so what was done with the electrical connectors?
What are tgv deletes?

I got this car with the intake, and injectors already installed. So as far as that. Well. I don't know. As far as the O2 sensor, again I have no idea how old it is, wouldn't hurt replacing it?
Pipp_Pipp is offline   Reply With Quote
Old 10-04-2013, 12:11 PM   #8
Cobb Tuning
NASIOC Vendor
 
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX
Default

TGV deletes are a modification where you remove the tumble generator valves located at between the intake manifold and cylinder head. Unabomber has a good write up on them here.

If your TGVs have not been removed, they have probably failed in some way. It's not an uncommon failure on older Subarus. You can look into fixing the problem or removing them and disabling the associated check engine lights in your tune.

For the P0171 code, do you have an Accessport or any way to datalog the car? Without more information and just making some guesses on the P0171 code......your front O2 could be worn out or your MAF sensor could be faulty. You could could have developed an intake leak (possibly pre-turbo). The scaling for your intake and/or injectors could be off in the tune.

Until you get the P0171 code sorted out, I would not recommend driving the car aggressively as it could be dangerous.

- Chris
Cobb Tuning is offline   Reply With Quote
Old 10-04-2013, 05:44 PM   #9
Pipp_Pipp
Scooby Newbie
 
Member#: 368699
Join Date: Sep 2013
Chapter/Region: South East
Vehicle:
2004 18g 23psi WRX
Custom tune

Default

Quote:
Originally Posted by Cobb Tuning View Post
TGV deletes are a modification where you remove the tumble generator valves located at between the intake manifold and cylinder head. Unabomber has a good write up on them here. If your TGVs have not been removed, they have probably failed in some way. It's not an uncommon failure on older Subarus. You can look into fixing the problem or removing them and disabling the associated check engine lights in your tune. For the P0171 code, do you have an Accessport or any way to datalog the car? Without more information and just making some guesses on the P0171 code......your front O2 could be worn out or your MAF sensor could be faulty. You could could have developed an intake leak (possibly pre-turbo). The scaling for your intake and/or injectors could be off in the tune. Until you get the P0171 code sorted out, I would not recommend driving the car aggressively as it could be dangerous. - Chris
I'll take a look at the tgv's


As for that P0171 code, yes I do have an accesport. I'll data log it later on,
Would that tell me where my problem is lying?
Pipp_Pipp is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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
Forum Jump

All times are GMT -4. The time now is 09:59 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.