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Thread: Stehignite's Disco Potato Turbo Build

  1. #41
    Join Date
    Jan 2019
    Location
    CA
    Posts
    6
    This is a fantastic series. Thank you for posting it!

    We’ll be looking forward to hearing what comes of the tuning issues.

  2. #42
    Join Date
    Apr 2022
    Location
    Colorado Springs, CO
    Posts
    2
    Did you ever get this figured out and working how you want it to?!
    2012 SX4, 5dr HB Man Crossover AWD, Quicksilver
    2018 Subaru Forester, 2.5i Premium Black Edition, Black

  3. #43
    Join Date
    Aug 2017
    Location
    West Bend, WI
    Posts
    90
    Quote Originally Posted by Moe View Post
    Did you ever get this figured out and working how you want it to?!
    Yes, sort of. The bucking and stalling was due to the ECU nulling the upstream o2 because the readings were so far out of what is expected. It was basically running permanent open loop. The reason is that the subaru 440cc injectors are rated at that flow at a much higher rail pressure than the sx4 is rated at. Those injectors in the sx4's system are somewhere around 360ccs IIRC. So my base fuel map was overly rich and it was not able to compensate. I have since swapped to the stock injectors to try to get rid of my downstream o2 codes. I still have not figured out the solution to that, and now since I am a father of 2 I don't have much time to mess with it. I actually will be posting the car for sale soon as my current lifestyle requires me to have a larger car that can fit a tandem stroller.
    2007 SX4 Hatchback J20A Manual, turbo install in progress; http://clubsx4.com/forum/showthread.php?t=8665
    also own a 1996 X90 4wd 4 inch lift on 30's G16B Manual

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