RentAGuzzi Motorcycle Rentals & Tours – Los Angeles CA
  1. Ciao Guest, Welcome to the GT Forum! GuzziTech is now back to our origins; We hope you enjoy the Guzzi Global Community Forum here. NEW REGISTRATIONS REQUIRE EMAIL ACTIVATION - CHECK YOUR SPAM FOLDER. ALWAYS TRY A SEARCH BEFORE STARTING A NEW TOPIC - AND PLEASE DON'T BE A DRIVE-BY POSTER: If you are posting on numerous sites on the web, please stop back and follow up. There is zero tolerance on personal attacks and off-site links to other Forums or competing products. 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. Note all of our products and custom bike builds are now on our sister site; GTMotoCycles.com - Store tab above. You need a different username and password to get into the new GTM Store system - pending and past order info is available there. NOTE: We are not Amazon, we are a tiny one man operation with several business going at once - Sign into the Store to check on orders before contacting us. Thanks for your patience on orders. For those who are new here, the owner of this site (Todd - GT-Rx®) has been immersed in Guzzis since 1999. He's raced and wrenched for two-thirds of his life, both Pro dirt-track and road-race, and contributed to Cycle World Magazine from 2000~2007. He began Guzzi dyno performance modifying and fuel tuning in 2001, and has been wrenching them full time since 2007. His GT MotoCycles workshop has been open for ~4 years in Orange, CA. We do not have a phone number for this site or GTM, we're online only... do not ask us to call you. Click on the Service tab above for more info or to book an appointment -- it is not a retail shop to visit. If you're in L.A., you can come sample our work via our rental fleet - click the image link above. In a few short years GuzziTech.com will hit the 20 year mark of providing advice and tech tips for free. Understand that this is a privately paid for website, not a free social media platform littered with ads to help pay for it. Donations appreciated via the Account upgrade (see Site Support section below) or the Donate tab above, which unlocks all of the content here along with the Classifieds, Ask the Wrench sections and our Seasonal discount notices. Thank you for all of the continued support and contributions.

Service warning and triangle - again

Discussion in 'Stelvio Chat & Tech' started by MotoZA, Sep 20, 2018.

  1. john zibell

    john zibell Moderator Staff Member GT Famiglia

    Joined:
    Oct 28, 2008
    Messages:
    7,370
    Likes Received:
    571
    Location:
    Huntsville, AL
    My answer to both your questions is I don't know.
     
  2. kiwi dave

    kiwi dave GT Reference

    Joined:
    Oct 28, 2008
    Messages:
    1,735
    Likes Received:
    226
    Location:
    Auckland, New Zealand
    You asking for more possible trouble substituting one model for another. They don't get different numbers from the manufacturer for no reason.
     
  3. MotoZA

    MotoZA Just got it firing!

    Joined:
    May 9, 2015
    Messages:
    21
    Likes Received:
    10
    Location:
    South Africa
    Finally got the bike running again. I *think* it was the ECU ground, even though it was secure. I loosened it, cleaned the surfaces, sprayed some terminal cleaner, and tightened. Also checked the resistance of the rpm sensor again, it measured 660 ohm. Cleaned its connectors too, and every other plug I could get my hands on. Even polished the battery lead connectors, wasn't going to leave anything to chance. Assembled, switched on, noticed the service warning was gone, pushed the start button, immediately started. Now not sure what the solution was, but very relieved.
     
    john zibell likes this.
  4. MotoZA

    MotoZA Just got it firing!

    Joined:
    May 9, 2015
    Messages:
    21
    Likes Received:
    10
    Location:
    South Africa
    Oh boy, the bike is starting to act up again with ECU error 54. So, I have decided I'm going to buy a new phase/rpm sensor because I've convinced myself (perhaps incorrectly) that it is the phase sensor that's busy failing. Reason? Sometimes the RPM dash needle drops to zero, it's hardly noticeable, but it coincides with a misfire. Also, if you read up on phase sensor failures, you can get a slew of different issues, many of which I experience.

    After spending hours on the web (mostly reading Aprilia/Guzzi/Ducati/Fiat/Alfa forums and bugging sellers on eBay) I have discovered that the Magneti Marelli SEN 813 is in fact a SEN 8i3, not 813 (a capital 'i', not a number one). I took mine out again and it's definitely a capital 'i'. Magneti Mareli makes a range of these sensors, most of them are designated as SEN 8#*, where the # could be D, E, K, M or I. The * is either omitted or a 3 (if omitted, it's a 2-pin, if a 3, well then it's a 3-pin).

    So after learning all that, I eventually found a replacement sensor made by Facet, part no. 9.0032. I'm going to order one and try it. I'll report back in due course.
     
    GT-Rx® likes this.
  5. MotoZA

    MotoZA Just got it firing!

    Joined:
    May 9, 2015
    Messages:
    21
    Likes Received:
    10
    Location:
    South Africa
    Unboxed.jpg
    So I replaced the Magneti Marelli Crank Position Sensor with the Facet one, it's been 6 weeks now and no more ECU errors, no more starting issues either. Bike runs and starts beautifully. Below some pics of the two sensors, I think the culprit is the very sharp bend in the old sensor's wiring, I made sure to have a larger radius when I installed the Facet sensor. Success.

    EDIT: To confirm, you can replace the Magneti Mareli SEN 8I3 sensor with a Facet 9.0032.
     

    Attached Files:

    Last edited: Dec 5, 2018
  6. Glenn Thorpe

    Glenn Thorpe Tuned and Synch'ed

    Joined:
    Nov 25, 2015
    Messages:
    49
    Likes Received:
    14
    Location:
    Tempe, AZ
    Great job trouble shooting to find the problem. Have you had any service warnings since?
     
  7. MotoZA

    MotoZA Just got it firing!

    Joined:
    May 9, 2015
    Messages:
    21
    Likes Received:
    10
    Location:
    South Africa
    Hi Glen,

    No, the service triangle warning is gone since I've replaced the Crank Position Sensor, I don't get it anymore. It's been more than 2 months now...
     
  8. Glenn Thorpe

    Glenn Thorpe Tuned and Synch'ed

    Joined:
    Nov 25, 2015
    Messages:
    49
    Likes Received:
    14
    Location:
    Tempe, AZ
    Thanks William.
     
  9. GT-Rx®

    GT-Rx® Administrator Staff Member

    Joined:
    Jul 1, 2009
    Messages:
    10,188
    Likes Received:
    2,484
    Location:
    Malibu

Share This Page