Running rich
+ Reply to Thread
Results 1 to 10 of 10

This is a discussion on Running rich within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Hey guys was wondering if anybody Can help me out. I have a 2012 wrx With Invidia catless downpipe AEM ...

  1. #1
    Registered User
    Join Date
    Feb 2012
    Location
    hempstead,LI
    Posts
    18

    Running rich

    Hey guys was wondering if anybody
    Can help me out. I have a 2012 wrx
    With Invidia catless downpipe AEM air
    Intake with Cobb stage 2 tune. It's
    Running real rich with lots of fumes.
    Anything I can do? Does it need pro tune?

  2. Remove Advertisements
    ClubWRX.net
    Advertisements
     

  3. #2
    Master Baiter EJ257's Avatar
    Join Date
    Aug 2007
    Location
    On a stream bank somewhere
    Posts
    19,862
    I Support ClubWRX
    How do you know it's running rich?
    2005 WRX STi (Mods | Virtual Dyno)

    Resident Tuner @ WTF Tuning

    "Never trust anything that bleeds for a week and lives ..."

    UNYSOC

  4. #3
    Registered User
    Join Date
    Feb 2012
    Location
    hempstead,LI
    Posts
    18
    Quote Originally Posted by EJ257 View Post
    How do you know it's running rich?
    I smell the fumes. And my tailpipes are
    Turning a goldfish color.

  5. #4
    Registered User
    Join Date
    Feb 2012
    Location
    hempstead,LI
    Posts
    18
    Goldish color sorry

  6. #5
    OMG WTF MainFrame's Avatar
    Join Date
    Sep 2002
    Location
    Texas, United States
    Posts
    8,723
    I Support ClubWRX I Support ClubWRX
    The only way to tell if it's running rich or lean would be to look at the readings from an O2 sensor. You either need a wideband hooked up, or log the readings from your front O2 sensor.

    For what it's worth, catless exhaust is going to have a raw smell to it, whether you're running rich or not.

  7. #6
    Registered User
    Join Date
    Feb 2012
    Location
    hempstead,LI
    Posts
    18
    Quote Originally Posted by MainFrame View Post
    The only way to tell if it's running rich or lean would be to look at the readings from an O2 sensor. You either need a wideband hooked up, or log the readings from your front O2 sensor.

    For what it's worth, catless exhaust is going to have a raw smell to it, whether you're running rich or not.

  8. #7
    Registered User
    Join Date
    Feb 2012
    Location
    hempstead,LI
    Posts
    18
    Thank you for your reply. I'll definatly
    Look into that.

  9. #8
    Master Baiter EJ257's Avatar
    Join Date
    Aug 2007
    Location
    On a stream bank somewhere
    Posts
    19,862
    I Support ClubWRX
    Quote Originally Posted by MainFrame
    The only way to tell if it's running rich or lean would be to look at the readings from an O2 sensor. You either need a wideband hooked up, or log the readings from your front O2 sensor.

    For what it's worth, catless exhaust is going to have a raw smell to it, whether you're running rich or not.
    Factory front O2 doesn't read below 11:1, which is right about where you want to be.

    WBO2 readings or nothing.
    2005 WRX STi (Mods | Virtual Dyno)

    Resident Tuner @ WTF Tuning

    "Never trust anything that bleeds for a week and lives ..."

    UNYSOC

  10. #9
    OMG WTF MainFrame's Avatar
    Join Date
    Sep 2002
    Location
    Texas, United States
    Posts
    8,723
    I Support ClubWRX I Support ClubWRX
    Quote Originally Posted by EJ257 View Post
    Factory front O2 doesn't read below 11:1, which is right about where you want to be.

    WBO2 readings or nothing.

    You're not going to want to be near that rich at idle or cruising. The only time you're going to want to be as rich as 11.1 to 1 is at WOT. At idle and under low load it should be around 14.7:1. The factory O2 readings should be plenty sufficient to see if the car is running stoich under all conditions other than the highest load levels.

  11. #10
    Master Baiter EJ257's Avatar
    Join Date
    Aug 2007
    Location
    On a stream bank somewhere
    Posts
    19,862
    I Support ClubWRX
    Quote Originally Posted by MainFrame
    You're not going to want to be near that rich at idle or cruising. The only time you're going to want to be as rich as 11.1 to 1 is at WOT. At idle and under low load it should be around 14.7:1. The factory O2 readings should be plenty sufficient to see if the car is running stoich under all conditions other than the highest load levels.
    Yes, in CL, you should be stoich. The factory O2 is only useful for cruise conditions. A WBO2 is useful @ cruise / under load.
    2005 WRX STi (Mods | Virtual Dyno)

    Resident Tuner @ WTF Tuning

    "Never trust anything that bleeds for a week and lives ..."

    UNYSOC

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself. We strongly suggest that you stay away from using aol, yahoo, msn, and hotmail accounts. Sometimes the mail server blocks the emails from our server. As a result you will not receive any notifications including the confirmation email.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •