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Thread: Help With Commander 950

  1. #1

    Default Help With Commander 950

    I seem to be having a few issues, hope someone can help. Chevy 454 with TPI.
    1. I cannot seem to get the software to switch between open & closed loop. No matter what I'm in closed loop.
    2. In closed loop, the Commander software is showing rich, my wideband is showing rich. However, the software is adding fuel to the maximum enrichment. I tried lowering the O2 target voltage, but still it goes to max enrichment.
    Is this software always in real time? Or are there instances when the vehicle needs to be stopped and the software sent to ECU? Thanks!

  2. #2
    Join Date
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    Default

    Quote Originally Posted by Zapp168 View Post
    1. I cannot seem to get the software to switch between open & closed loop. No matter what I'm in closed loop.
    Check that your software version is compatible with your firmware version:
    1.xx = 1.xx
    2.xx = 2.xx
    3.xx = 3.xx
    The latest C950 EFI software version is 3.0.7, and the ECU firmware is 3.6.
    Click on the About & Version tab (with the key-on) to find your current software & firmware versions.
    Download the latest software here: https://www.holley.com/support/resou...Fuel_Injection
    Holley Commander 950 Pro EFI Manual: http://www.holley.com/data/Products/...99R10149-7.pdf

    Is this software always in real time?
    In Engine Parameters (Hardware Settings), ensure the changes you made are being saved. Exit & reenter screen to verify this.
    The nonnumerical settings require a key-off/key-on event (restart) to take effect, because they're not "real time editable".

    Or are there instances when the vehicle needs to be stopped and the software sent to ECU?
    No. http://forums.holley.com/showthread....7074#post27074 (Related Forum Post)
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

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