Tach Frozen

Discussion in 'America, Speedmaster & Rocket' started by Bill MacFarlane, Jan 18, 2024.

  1. Bill MacFarlane

    Bill MacFarlane Member

    Dec 2, 2023
    16
    8
    Conder
    #1 Bill MacFarlane, Jan 18, 2024
    Anyone had this happen to their tach? I've recently had the tank off to delete the O2 sensors and the air injection. I suppose I've done something to it then but the wiring all looks good - nothing was pinched or anything. Grateful for any experience shared.
    2009 Speedmaster EFI

    IMG_9623.jpg
     
    • Useful Useful x 1
  2. Eldon

    Eldon Elite Member

    Nov 14, 2018
    7,259
    800
    North Yorkshire
    #2 Eldon, Jan 22, 2024
    Just an idea..... On a Yamaha I had, the tacho was a fault code reader. I can't remember if it was 4k or 7k without engine running but it indicated I hadn't connected the fuel gauge plug.
     
    • Useful Useful x 1
  3. Bill MacFarlane

    Bill MacFarlane Member

    Dec 2, 2023
    16
    8
    Conder
    #3 Bill MacFarlane, Jan 22, 2024
    No, I don't think so. This ECU isn't that advanced. When there is a fault it just shows a check engine light on the speedo and one has to hook-up with TuneECU or similar to read the code(s) and copy or delete them.
     
    • Useful Useful x 1
  4. Eldon

    Eldon Elite Member

    Nov 14, 2018
    7,259
    800
    North Yorkshire
    #4 Eldon, Jan 22, 2024
    Try the standard reset function by starting the engine from stone cold with NO THROTTLE!
    Do not touch the throttle at all!
    Let the engine warm up for 12 - 15 minutes then turn off.
    Repeat twice more, once fully cold i.e. later or next day.

    I think it's x3 cycles maybe someone else could confirm?
     
    • Like Like x 2
Loading...
Similar Threads - Tach Frozen
  1. Paul Gordon

    Sprint Gt Topbox Won't Detach

    Paul Gordon, May 3, 2025, in forum: Triumph General Discussion
    Replies:
    0
    Views:
    206
    Paul Gordon
    May 3, 2025
  2. DGBland

    Tachometer/rev Counter Irritating Electrical Fault

    DGBland, Dec 20, 2024, in forum: Bonneville
    Replies:
    5
    Views:
    837
    DGBland
    Dec 21, 2024
  3. Old school

    1995 Thunderbird Misfires On #1 And The Tach Reads Zero At Idle

    Old school, Jul 26, 2024, in forum: Technical Help
    Replies:
    7
    Views:
    712
    Old school
    Aug 20, 2024
  4. DGBland

    Tacho Rev Counter Intermittent Fault

    DGBland, Jul 29, 2023, in forum: Technical Help
    Replies:
    0
    Views:
    426
    DGBland
    Jul 29, 2023
  5. Chalooch

    Speed Four Tachometer Lens

    Chalooch, Mar 21, 2023, in forum: Technical Help
    Replies:
    0
    Views:
    542
    Chalooch
    Mar 21, 2023

Share This Page

Sign up