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Thread: E98 - Fundamental Mode Details

  1. #1
    Junior Member PHLTHS's Avatar
    Join Date
    Dec 2014
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    21

    Default E98 - Fundamental Mode Details

    Hi All

    Wanted to ask a few questions about the E98 if anyone knows?
    I've noticed throughout the tune there is a lot of reference to the multiple different altitude’s tables, however is there any way to tell what thresholds the ECM used to switch between each of them?

    1: Low Alt
    2: Med Alt
    3: High Alt

    Also, I've noticed throughout the tune there is a lot of reference to the multiple different mode tables.
    I think they are the different combustion modes that can be logged using the COMBUSTION MODE COUNTS PID, is this correct?

    1: Normal Mode
    2: Alternate Mode 1
    3: Alternate Mode 2
    4: Alternate Mode 3
    5: Alternate Mode 4
    6: Alternate Mode 5

    Throughout the tune there is a lot of reference to the different Pattern modes. I know the following to be true:

    1: Pattern 1 = Pilot-Injection #1 only
    2: Pattern 2 = Pilot-Injection #1 & Pilot-Injection #2

    I’m not sure how to tell which of the Pilot-Injections are being used. I can use the Injection Event Active Status, but it only tells you that the Pilot Injection is active, not which one or if both are?

    1: Pattern 1
    2: Pattern 2

    B0609 - Turbo Protection EGT Threshold
    The ECM will enter turbo protection mode when EGT rises above these thresholds. Is this referencing to the B1S1 or B1S2 sensor?
    Last edited by PHLTHS; October 27th, 2020 at 08:58 AM.
    HSV W427 / HSV SportsCat SV

  2. #2
    New Member
    Join Date
    Feb 2023
    Posts
    4

    Default

    Hi,
    Did you find any details on this? I'm interested as my tuned car is lacking power at 500m and feels like somehow it is in a medium altitude table with reduced boost etc when it shouldn't be as 500m is not high. My MAP sensor is fine and barometric sensor from the ecu also reads accurately

    Thanks !

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