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Thread: Upgrade from E38 ECU??

  1. 07-25-2019 #21
    jsllc
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    Quote Originally Posted by lukearmstrong1990 View Post
    I think your issues are arising from having the custom SD OS and still using a MAF.

    if I were in your shoes I would either ditch the MAF and tune full SD or flash the stock OS back in and either do MAF or blended tune.
    You have to use the patched OS with an E38 or you will have issues with Baro getting set to a boosted level. No way around that. So patched OS and MAF is done many times.
    Last edited by jsllc; 07-25-2019 at 12:38 AM.
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  2. 07-26-2019 #22
    Jet Mechanic
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    Luke.....

    Tried the "fail" option....... Didn't solve the starting issue when coolant temp was above 210 and also induced some drivability issues under acceleration. I did not modify my current tune any....only "failed" the MAF.....

    SO....I will continue to search on....and hope that I find a solution before running out of $$$$$$$$$

    Thanks for your input!!
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