Results 1 to 10 of 10

Thread: Timeout occurred reading RTC

  1. #1

    Default Timeout occurred reading RTC

    I was able to connect into my ECU, then did an EFI software updates version 4 build 110. And now I can't connect, keep getting timeout occurred reading RTC. Has anyone had similar problems? I know the RTC stands for real time clock, is there a way to go in and set it? Thanks in advance any help would be great 1st time using the Holley EFI software.

  2. #2
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    19,253

    Default

    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. The ECU will keep the date & time, as long as the ECU isn't disconnected from the battery. This may or not be the problem.
    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

  3. #3

    Default

    I can't even get to go Online. Every time I hit USB Link, it just gives me timeout occurred. I'll most likely have to get ahold of Holley tech tomorrow. Thanks for the quick reply & your input.

  4. #4

    Default

    I'm having exactly same problem. I was on phone with Holley, but they weren't much help. As you said, as soon as I go into USB Link, it goes directly to sync and tries to talk to Holley ECU and starts comparing and that's when I get timeout then proceeds to Global Info and same results occur with timeout. Goes on to check injectors and same result occurs. This is a new install, but I've been through wiring but can't find anything wrong.

  5. #5
    Join Date
    Nov 2014
    Location
    Ont. Canada
    Posts
    938

    Default

    Do you have the 3.5" display? Can you connect with it? If so, try another firmware update.

  6. #6

    Default

    No on the 3.5" display, working on Dell laptop with Windows 10.

    Can you elaborate on that firmware update?
    Reinstalled software yesterday (version 4) with new USB driver), but same results.
    Just retried this morning checking voltage to red/white wire in harness same results.
    Changed to another mini USB also the same.

  7. #7
    Join Date
    Nov 2014
    Location
    Ont. Canada
    Posts
    938

    Default

    Did you update the EFI software and the ECU firmware? They both need to be the same version.

  8. #8
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    19,253

    Default

    Yeah, the EFI (laptop) software, ECU firmware & touchscreen unit must all be V4 compatible (LINK).
    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

  9. #9

    Default

    Any solutions to this from the guys that had this problem? I'm having the exact same issue.

  10. #10

    Default

    I've had customers run into this, but it has always been "operator error" where they had a mismatch between the firmware and the laptop software. One had to redo his firmware update. That does not require an "Online" connection with the ECU, only the "USB Link".

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