Ridemalibu Motorcycle Rentals & Tours – Los Angeles CA
  1. Ciao Guest - You’ve landed at the ultimate Guzzi site. In SoCal? See the SERVICE tab above for the best in service, tires, tuning and installation of our products or custom work. NEW FORUM REGISTRATIONS REQUIRE EMAIL ACTIVATION - CHECK YOUR SPAM FOLDER. ALWAYS TRY A SEARCH BEFORE STARTING A NEW TOPIC - Most questions you may have are already answered on the Forum with FACTS, NOT OPINIONS. PLEASE DON'T BE A DRIVE-BY POSTER: As a common courtesy, check back if you are posting elsewhere on the web. Note there's decades of Guzzi hands-on experienced help on this site, all whom give endless amounts of their time for free; BE COURTEOUS AND RESPECTFUL! There is zero tolerance on personal attacks and off-site links to other Forums or competing products. Also be sure to click on the STORE link also above for our 600+ product inventory, including many of our 100% Made-in-house-USA GTM products and engine kits. We appreciate the consideration, understanding and your business... past and future. And if you haven't seen our MotoCycle (not) art, click on the BUILDS tab above to see our work at our sister business; GT MotoCycles®-- WE ARE ONLINE ONLY - NO PHONE CALLS MADE OR RECEIVED.

ECU location and removal

Discussion in 'Stelvio Reference Topics/Recalls' started by GT-Rx®, Sep 12, 2009.

  1. GT-Rx®

    GT-Rx® Administrator Staff Member GT di Razza Pura

    Joined:
    Jul 1, 2009
    Messages:
    11,327
    Likes Received:
    3,407
    Location:
    Malibu
    Thanks to Al for the words and pics...

    1. Disconnect the negative lead of the battery.

    Options are remove the right side body work (a real pain) or work patiently from above and below to remove the ECU with the body work in place (less time and difficulty but you still need lots of patience)

    2. Tools I used ( 1/4" socket drive, ext, 8mm socket, 4mm allen wrenches, lock grips, flashlight):

    [​IMG]

    3. Top shot of the ECU which is forward on the left side of the bike, opposite the fuse/relay box. Note the mounting bolt nut at forward lower corner. There are two of these, another towards the back of the bike.

    [​IMG]

    4. Socket and extension on the nut:

    [​IMG]

    Both nuts were taken off with some difficulty as there is not much room to get to the allen head on the opposite side and hold it in some way while you are taking the nut off. The small vise grips were instrumental in this.

    5. View of ECU from underneath after both bolts were removed:

    [​IMG]

    6. View from top of ECU with one of the electronic connectors removed. Both connectors are on the top. Study them carefully with good light. There is a small plastic tab on the top of the connector you can push down with a small flat tip screw driver and then rotate the connector lock down towards that tab to release the connector:

    [​IMG]

    7. View from below of the released electronic connector and the most forward mounting bolt - note the ground wire on that mounting bolt:

    [​IMG]

    8. Here is a shot of the ECU out of the bike with the mounting bolts:

    [​IMG]

    It took me 60 - 90 minutes once I decided how to attack.
     
  2. guzziben47

    guzziben47 Cruisin' Guzzisti

    Joined:
    Jun 5, 2010
    Messages:
    200
    Likes Received:
    0
    It took me twice as long, and if I had it to do all over again, I'd try another method of attack!

    I had to use needlenose pliers to get at those bolts; I couldn't get an allen wrench in there. And it helped to undue some of the rip ties, so I could get the wires out of the way.

    When I re-assemble, I was thinking I'd use different bolts (i.e. the type you can put a regular wrench on the end of) and maybe replace the lock nuts with something easier to take on and off.

    Also, if it weren't for the fact that I can't get my side panels off (long story), I'd try attacking the ECU by first removing the panels....
     
  3. kmartin

    kmartin Cruisin' Guzzisti

    Joined:
    Oct 3, 2009
    Messages:
    298
    Likes Received:
    2
    Location:
    SoCal Mountains
    I think this method would be much easier if the insturment panel was removed first. 4 Screws and one connector, take a couple of minutes. Of course the windshield should be off also.
     
  4. pnguzzi

    pnguzzi Cruisin' Guzzisti

    Joined:
    Sep 8, 2009
    Messages:
    145
    Likes Received:
    0
    Did the procedure a couple of time within a week or so. Not to bad, just requires patience, reading glasses if you have em, good light and the hand of your 12 year old son!!
     
  5. DanPez

    DanPez Cruisin' Guzzisti

    Joined:
    Jun 27, 2010
    Messages:
    489
    Likes Received:
    4
    Location:
    Hudson, Quebec
    If I may make an addition to this procedure ......
    For the front bolt of the ECU you can gain better access, with the allen key, when removing (only one) front 3mm allen screw holding the LH silver duct.

    (Looking at View #5, of this procedure, its the allen screw slightly below and between the 2 arrows)

    On my 2009 doing so the allen key can be inserted through the port hole of the LH turn indicator.

    By the way good procedure ... did it a couple of times also. Thanks Al
     

    Attached Files:

  6. Stella

    Stella Tuned and Synch'ed

    Joined:
    Sep 12, 2012
    Messages:
    47
    Likes Received:
    1
    Location:
    Sault Ste Marie
    The 2012 Stelvio's have the ECU mounted with the connectors on the bottom, piece of cake to remove,my 1st time and it took me less than 10 min.
     
  7. Brian UK

    Brian UK GT Reference

    Joined:
    Nov 6, 2008
    Messages:
    2,023
    Likes Received:
    192
    Location:
    Addlestone, Surrey, UK
    If you have the ECU off, it might be a good time to fit the rubber waterproofing boot now available from Guzzi for a couple of bucks.
     
    Markcarovilli likes this.
  8. fotoguzzi

    fotoguzzi Tuned and Synch'ed

    Joined:
    Oct 28, 2008
    Messages:
    79
    Likes Received:
    1
    Location:
    Minneapolis, MN
    dumb question maybe but why do you all have to take off the ECU?
     
  9. GT-Rx®

    GT-Rx® Administrator Staff Member GT di Razza Pura

    Joined:
    Jul 1, 2009
    Messages:
    11,327
    Likes Received:
    3,407
    Location:
    Malibu
  10. fotoguzzi

    fotoguzzi Tuned and Synch'ed

    Joined:
    Oct 28, 2008
    Messages:
    79
    Likes Received:
    1
    Location:
    Minneapolis, MN
    Oh, now I get it..
     
  11. charlietuned

    charlietuned Tuned and Synch'ed

    Joined:
    Dec 7, 2011
    Messages:
    93
    Likes Received:
    2
    Location:
    Cape Town, South Africa
    Hi , What ECU unit has the 2012 Stelvio NTX got ??
     
  12. GT-Rx®

    GT-Rx® Administrator Staff Member GT di Razza Pura

    Joined:
    Jul 1, 2009
    Messages:
    11,327
    Likes Received:
    3,407
    Location:
    Malibu
    Still a 5AM. I've done several with great results.
     
  13. scottmastrocinque

    scottmastrocinque Scott Mastrocinque GT Famiglia

    Joined:
    Jun 26, 2011
    Messages:
    871
    Likes Received:
    534
    Location:
    Findlay, Ohio
    Does anybody have a part number for this waterproofing boot?

    Thank you in advance.
     
  14. canuck1969

    canuck1969 GT Reference GT Contributor

    Joined:
    May 31, 2012
    Messages:
    1,242
    Likes Received:
    190
    Location:
    Burlington, Ontario
    Not sure this boot is needed on the 2012 NTX's. The previous models had the ECU mounted with the connectors facing up, ours has it with the connectors facing down (at least on mine).
     
  15. OMAAS

    OMAAS Just got it firing!

    Joined:
    May 19, 2011
    Messages:
    10
    Likes Received:
    0
    Location:
    Melhus, Norway
    My Stelvio 8V 2011 have got an recall (SERVICE BULLETIN No 007) in October my MG dealer e-mailed me the PDF with workshop manual and parts numbers.

    The recall:
    • Central Stand
    Protection of electronic control unit
    • Fuse-box cable harness protection
    • Main cable harness protection
    • Starter motor cable harness
    • Frame shield

    To perform the measures you will need the following codes:
    - Central stand: cod.887544
    - Right plate: cod.883664
    - Protection of electronic control unit cod.883968
    - Fuse-box rubber protection: cod.887947
    - Main cable harness protection: cod. AP8220709
    - Frame shield: cod.GU06409800
     
  16. bmacneil2008

    bmacneil2008 Tuned and Synch'ed

    Joined:
    Aug 16, 2014
    Messages:
    54
    Likes Received:
    7
    Location:
    Charleston, SC
    I finally removed 99% of the bolts to the left cowling, even the gas cap cover. Took 60 mins but so much easier being able to lift the fairing way out and even better underneath. I have purchased a 2 foot long allen rod so I can even remove the 2 allen bolts holding the fairing on to the nose cone for when I replace after Todd reflashes the ECU. BTW, I have a 09 Stelvio and it has the water boot.
     
  17. Nicolai

    Nicolai Just got it firing!

    Joined:
    Jun 26, 2016
    Messages:
    16
    Likes Received:
    2
    Location:
    World 02138 and France
    Help (again): 2013 NTX riding smooth in dry weather Boston, all of a sudden in straight line bike stalled and ECU with a disconnected cable symbol appears at bottom of LED panel. I'm on roadside with minimal tools.
    Got to the ECU, disconnected both connectors and reconnected, still error message....
     
    Last edited: Jul 9, 2018
  18. john zibell

    john zibell Moderator Staff Member GT di Razza Pura

    Joined:
    Oct 28, 2008
    Messages:
    8,002
    Likes Received:
    844
    Location:
    Huntsville, AL
    Check the ground connection on the ECU (usually a green wire with loop connector). Correcting that may help, but I've seen ECUs fail when the ground connection wasn't good.
     
  19. Vt-Guzzi

    Vt-Guzzi Just got it firing!

    Joined:
    Jun 4, 2017
    Messages:
    16
    Likes Received:
    8
    Location:
    Vermont
    Anyway we can get a new set of photo's. from the first post? They seem to be missing.
     
  20. GT-Rx®

    GT-Rx® Administrator Staff Member GT di Razza Pura

    Joined:
    Jul 1, 2009
    Messages:
    11,327
    Likes Received:
    3,407
    Location:
    Malibu
    Yes... we moved to a new server in July, so we're still finding small things like this. Check back again tomorrow night, or I'll post again when they are back up.
     
    Vt-Guzzi likes this.

Share This Page