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Thread: 12212156 OS Cylinder Airmass

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  1. #1
    Carb and Points!
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    12212156 OS Cylinder Airmass

    Hello all,

    Im working on the VE calibration for my 02 corvette. Just installed headers and X pipe. I've gotten fueling really close, but I am getting P1514 at lower RPMs at 90-95 kPa. I know there are tables that can be adjusted in HPT to fix this. Is there a workaround I can use?

    This is my first tune. I'm pretty happy with myself for getting my method/workflow to where it is, so I'm really hoping I don't need to switch to HPT at this point.

  2. #2
    Fuel Injected!
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    There are 2 tables under engine diagnostics for the etc predicted airflow. Nothing I’ve had to mess with but could start there.

  3. #3
    Carb and Points!
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    That's were I have heard it is in HP tuners, but I found no such thing.



    I was thinking MAP rationality test, but I haven't gotten a P0106. But it also seems strange I'm running into this problem with just long tube headers.

  4. #4
    Carb and Points!
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    http://www.gearhead-efi.com/Fuel-Inj...-XDF&styleid=3

    Same issue here. I tried to see if that XDF would work just for that table on my OS, but it didnt look right.

  5. #5
    Fuel Injected!
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    Here’s what is it looks like and the xdf version I was just looking at. Sorry about the glare. I was outside. It’s the 2156 v3 xdf. Maybe the xdf you are using doesn’t have those tables.
    A0783F90-9828-4322-A908-4F31766426A9.jpg
    185DCE7B-AEC8-41C0-8028-6836C5FAB26D.jpg
    D749AF96-F2B5-4EDA-963F-0E1BB2C75EA9.jpg
    C6754F7B-2B36-408F-82D4-1ADB9C68A557.jpg
    Last edited by brandongarnold02; 04-19-2023 at 08:48 PM.

  6. #6
    Carb and Points!
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    Quote Originally Posted by brandongarnold02 View Post
    Here’s what is it looks like and the xdf version I was just looking at. Sorry about the glare. I was outside. It’s the 2156 v3 xdf. Maybe the xdf you are using doesn’t have those tables.
    A0783F90-9828-4322-A908-4F31766426A9.jpg
    185DCE7B-AEC8-41C0-8028-6836C5FAB26D.jpg
    D749AF96-F2B5-4EDA-963F-0E1BB2C75EA9.jpg
    C6754F7B-2B36-408F-82D4-1ADB9C68A557.jpg
    Thats exactly what I am looking for!

    I am using "12212156_release", that I think came in the TunerPro files, and those are missing. Where did you get that xdf from?

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