Results 1 to 6 of 6

Thread: Commander 950 Software Disks

  1. #1
    Join Date
    Jun 2014
    Location
    Arvada, Colorado
    Posts
    2

    Default Commander 950 Software Disks

    Hi, my name is Mike. I have been running the Holley 4DI fuel injection for about a year now, but now I'm installing a Commander 950. My question is, which software should I buy and why, the 534-191 or the 534-144. Thanks, Mike.

  2. #2
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    23,075

    Default

    Holley 534-191 Commander 950 Pro Software Upgrade is what you need.
    This includes a certificate for sending your C950 ECU to Holley for the firmware update.
    The firmware in your C950 ECU can only be updated by sending the ECU to Holley.

    IF you don't already have a WBO2 sensor kit, just purchase Holley's 534-197 WBO2 sensor kit.
    It contains the ECU firmware update certificate, and the C950 software is a free download (below).

    Absolutely use the latest ECU firmware!
    The newest software & firmware will operate a narrowband or wideband O2 sensor.
    I highly suggest Holley's own 534-197 WBO2 sensor kit; it's "plug & play" with the C950 harness.

    You can download the latest C950 software, the C950 manual and all the base maps here:
    http://www.holley.com/TechService/Li...#FuelInjection (Scroll down to "Commander 950")
    The wideband O2 base maps are already loaded in the EFI software (C:CMDR950 folder).

    Click on the About & Version tab (key-on) to find your current software & firmware versions.
    Your C950 software version must be compatible with your C950 firmware version:
    1.xx software = 1.xx firmware
    2.xx software = 2.xx firmware
    3.xx software = 3.xx firmware
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

  3. #3
    Join Date
    Jun 2014
    Location
    Arvada, Colorado
    Posts
    2

    Default

    Thank you for your input. How can I tell which firmware I have now?

  4. #4
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    23,075

    Default

    Quote Originally Posted by Ratt man View Post
    Thank you for your input. How can I tell which firmware I have now?
    Read the last paragraph of post #2.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

  5. #5

    Default

    Hello Friends, name is Todd, nice to meet you! Pulling out the '53 Studebaker equipped with a 350 Chevy tuned port and read the above post. It has the 950 Commander 950 and would like to upgrade to the wideband O2 sensor. Does Holley still offer the software upgrade?

  6. #6
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    23,075

    Default

    Quote Originally Posted by Bulldog View Post
    Does Holley still offer the software upgrade?
    Contact Holley Tech Service (LINK). It's currently not available online.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
About us
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Headers, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.
Join us