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Thread: No laptop communication with Dominator ECU.

  1. #1

    Default No laptop communication with Dominator ECU.

    Hello all. Fresh install here. I have no communication with my ECU. Verified constant power & ground at main power connector (hooked directly to battery). Verified +12V switched at A10 J1A. When connecting USB cable to laptop I get the verification ding from laptop, so I'm assuming the ECU itself has power. Could this be a firmware/software issue? When opening the main menu in Holley V4 software (used disc that came in box with ECU), if I click on "Download From ECU" it does nothing. Just says "Syncing With ECU" in the top of the dialog box, but never changes. First time Holley EFI user, not new to wiring. Any help would be greatly appreciated thanks!

  2. #2
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    22,711

    Default

    If there's no Global File in the ECU, then you need to upload one by selecting "Open Global File", or "Click Here To Open Selected File" if it's in your laptop's Global File folder.
    http://forums.holley.com/showthread....2193#post72193 (EFI Software/ECU Firmware Problems)
    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

    Default

    I have a Global File already built for the vehicle ready to upload into the ECU. The problem I'm having is that the laptop won't communicate with the ECU in any capacity. I've tried to upload that file multiple times with no success. When I open my Global File, the Sync button isn't highlighted, also it says "Offline" in the toolbar. I've tried removing and installing the EFI software from the disk sent with the unit twice, also deleted and re-installed from Holley's website with no luck. I acts like the ECU itself isn't turning on or "waking up", yet I've all the necessary power/ground circuits verified multiple times. The ECU should actually be back at Holley right now to have the Tech Dept. check it out and verify that the unit itself isn't bad. I was a new in box deal and the car never ran because I couldn't download to it. Hopefully everything checks OK on Holley's end. Are there any other things for me to check on my laptop as far as permissions or drivers? Laptop is an ASUS X540S with Windows 10. Thanks for the reply!

  4. #4
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    22,711

    Default

    Does the laptop chime when you connect the USB cable? The EFI software should indicate "USB Link" when connected, then you click on that to go "Online" with the ECU. Also, does your computer's Device Manager indicate it's connected?

    • Laptop "Online" Communication With ECU:
    Next to the “Toolbox” button, is a button to indicate the status of ECU/laptop communications.
    This button can read any one of the following depending on communication status.
    Offline: Is shown when the ECU is not powered or the USB cable is not connected.
    USB Link: Is shown when the ECU is powered and USB connectivity is established.
    However, the user has not chosen to select the “Online” mode,
    and the Laptop & ECU are not communicating with each other.
    Changes made at this time on the laptop, are not being updated in the ECU.
    Online: Is shown when the Laptop and ECU are communicating.
    At this point, changes made with the laptop are real-time updated in the ECU.

    • "Get From ECU" & "Send To ECU" - ECU Sync window:
    When you connect a laptop and go "Online" with the ECU, you first want to click "Get From ECU". This updates your laptop with the latest ECU "state of tune". If you click "Send To ECU", you overwrite all the Learning the ECU has performed since the last time that laptop was connected (because you're not sending the latest, up to date values to the ECU). The only time you should click "Send To ECU", is if you're just sending a Global File change to the ECU and you haven't driven the vehicle since the last time the laptop was connected.

    • ECU Date & Time:
    When you go "Online" with the ECU, the option to "Sync ECU Time" (ECU RTC - Real Time Clock) is at the top of the ECU Sync window. Then cycle the ignition key off/on.

    A Terminator ECU is an HP ECU; same ECU, just a different decal. Download the Holley V3/V4 EFI software to your laptop (LINK),
    open the software with the USB cable (LINK/LINK) connected, click on "USB Link" to go "Online" with the ECU, and select "Get From
    ECU", (if there's still a Global Folder/File in it), or "Send To ECU" (if you're selecting a new base calibration to upload into the ECU).

    The EFI (laptop) software, ECU firmware & touchscreen unit (if applicable) must all be V3/V4 compatible (LINK).
    If the touchscreen's GCF Wizard doesn't work, use the laptop EFI software to load the Global File. The V4 EFI software has base
    calibrations available. Open the EFI software & click "Open Global File", then "Base Cals". When using the EFI software, everything
    is done with the laptop. The GCF Wizard or those related files are no longer needed on the 3.5" LCD Touchscreen (TSLCD).

    • Creating, Naming & Saving a Global Folder/File (Global Config Directory):
    You should name your Global File and save it in the EFI software. See below:
    Open the "Help" Contents ("Help" drop down menu), and read "Step-By-Step Beginner's Tuning".
    Or, at least read the "Quick Start Guide": http://documents.holley.com/techlibr...r10546rev1.pdf.
    IF creating a new Global File Name (as opposed to just saving a change in an existing GF), it's much easier to click "File",
    "Save Global File As...", delete the Global File Name shown and just type in the new name you want without any backslash.

    • Emailing Global Folders/Global Files (V4) & Datalogs:
    Your Global File and/or Datalogs can be emailed to yourself or other forum members. Click on their username, "View Profile", "About Me" & "Download vCard" for their email address. When emailing a Global File or Datalog, use your email's 'attachment utility' function and Browse through your computer's "Documents", "Holley", "HEFI" & "Global Folders"/"Global Files" (V4) or "Datalogs". V3 & earlier: Then right click on your Global Folder and Send To "Compressed (Zipped) Folder". Then select the zipped folder and attach it to the email. V4 Global Files & Datalogs (all versions) aren't required to be "zipped"; simply select & attach it to the email. The recipient now has your entire GF or Datalog in one easy step. If it's zipped from email, so download it to your Desktop (or wherever your PC saves it to), and unzip it. Then "Cut & Paste" the GF into "Holley" "HEFI" "Global Folders/Files" directory (located in Documents).
    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

    Yes, I do the get the chime from the laptop when I connect/disconnect the USB cable. However, the status in the toolbar never changes to USB Link. Just says Offline and it's grayed out just as the sync button in the toolbar below it. This seems like a very simple procedure and it's not working out, ha ha. I spent two days combing the forums, watching your replies to try and sort this issue out myself. This is why I finally made the decision to contact my retailer and send the ECU back to have it checked out. I'm just trying to be proactive to make sure all my laptop issues are sorted out before it gets back. I should hopefully have information today from Holley regarding the status of my ECU.

  6. #6

    Default

    Could be a Windows thing. I have a new Windows 10 laptop that doesn't like to communicate with the Holley ECU. Sometimes it works, sometimes it doesn't. I've never figured out the root problem. Usually a reboot solves the issue, but eventually it stops communicating and I have to reboot the laptop again.

    My PC nerd buddies tell me that Windows is like a waitress with a big stack of plates on her arm. Sometimes she makes it to the kitchen without dropping a few, sometimes she doesn't.

  7. #7

    Default

    I've had this issue where sometimes the Dominator is faulty and the USB connection at the Dominator needs replacement. Has to be conducted by Holley. Is this a new PCM?

  8. #8
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    22,711

    Default

    Some laptops are full of background programs. Temporarily disabling antivirus software programs seems to be a common resolution. A cordless mouse can cause problems too. Also, ensure the EFI software is set to run as an "Administrator" (right click for Properties/Advanced).
    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.

  9. #9

    Default

    Yes, new ECU. Thanks for the info Danny. I will make the necessary changes to the EFI software. Also, when I get my ECU back, I'll verify that it's showing up as connected in the Device Manager. I didn't even think of that before, what a goof. LOL.

  10. #10

    Default

    Well guys I have a solution to my issue. Heard back today that the USB port on the ECU is faulty. Person I bought it from made it right and I have a new ECU on its way. Thanks everyone for the replies & information.

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