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Thread: 2002 Z06 not showing AFR via EGR.

  1. #1
    Potential Tuner
    Join Date
    Apr 2012
    Posts
    3

    2002 Z06 not showing AFR via EGR.

    I am trying to log AFR on my Z06 but find myself on a snag.

    I followed this guide perfectly to my knowledge.
    http://forums.corvetteforum.com/c5-s...hp-tuners.html

    Used pin 55 and ran the output 0-5V from my PLX box to that pin.

    The gauge coming from the box is working great, but it's not logging when I log.

    Any help would be greatly appreciated!

    I have attached for ease my config file, a log and my tune.

    Electrical things are not my strong suite.

    Cheers,
    -Hippo

    EDIT:
    I think I may not have properly hooked up the PLX box to the EGR. Does it need some type of ground coming from another slot on the analog?

    I'm looking at the install manual for it here.
    http://www.plxdevices.com/support/ma...UsersGuide.pdf

    And for the place where you insert 4 wires under "Analog" on the back of the box, the instructions are quite vague if someone could tell me EXACTLY what I need to put into all 4 slots. I currently have the 0-5V output to the ECU on the bottom right and a wire from the gauge going into the top left.

    Thanks!
    Last edited by FuglyHippo; 03-02-2013 at 05:57 PM.

  2. #2
    Advanced Tuner
    Join Date
    Apr 2009
    Posts
    613
    You need to set the egr to enabled on the engine general tab. I couldn't get your cfg to work to check that.
    1997 Trans Am WS6 - LS1 swap - TR224 - Pacesetter Longtubes - Yank SS3600
    - 3.42 Moser 12 bolt - Wilwood Brakes - HP Tuners tuned - P1SC-1 Procharger

  3. #3
    Senior Tuner
    Join Date
    Sep 2008
    Posts
    1,668
    Under Engine/General set EGR to enabled, then set the diagnostic speeds to something extremely high that you won't see. EGR Airflow table is already zero'd, as is the EGR spark table, so once you flip that to enabled, the input on the PCM will be turned on (it'll actually see data).
    2010 Camaro SS M6. Stock Bottom End, Heads/Cam/Intake/Headers/Exhaust.
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