Multistrada Fuelling Issue

Discussion in 'Newbies Hangout' started by Paul Gayne, May 26, 2025.

  1. Hi, I am new to Ducatis having previously owned JApanese and British bikes of various styles and vintages. My 950 Multistrada will not hold a steady speed through towns. It is fine at higher speeds but below 40 mph the throttle seems to be an on/off switch I also noted that when the bike is started without touching the throttle the revs are fluctuating between 800 and 3000 rpm and the engine seems to be hunting for a steady speed.
    I am OK with carburettors but not so much with FI. Suspect it may be an issue with the TPS being out of synch or do they all do this?
    Any advice gratefully received.
    Bike is a 2017 model
     
  2. Doesn’t sound right to me. I have no experience on that bike but my 1200 idles steady as anything. Could be a few possible issues though, air leak, dirty throttle body, faulty sensor etc etc. Probably going to need to get it plugged in to find out for sure. Before that I would be tempted to put a bottle of fuel injector cleaner in and go for a run. Or better still, get the throttle bodies and give a good clean. Wouldn’t want to build your hopes up that it would sort it, but it’s cheap and won’t harm.
     
    #2 TBay, May 26, 2025
    Last edited: May 26, 2025
  3. Thank you TBay. I will definately give that a try.
     
  4. Welcome into our mad house :)
     
  5. Sounds like a sensor, or maybe an HT issue. If you can get the bike scanned for errors, as suggested above, that might well highlight what's wrong.

    A member local to you may have an OBDStar unit or similar.
     
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  6. I have an OBDII scanner that I use for my cars is it the same or are bike ones different?
     
  7. Welcome and enjoy. Hope you get it sorted!
     
  8. It is booked in for diagnostic tests
     
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  9. Exhaust flap sticking? They only operate within a certain rev range
     
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  10. Wayne at GTec sorted this out he found a pinhole in the MAF sensor tube.
     
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  11. Gald you go that sorted out Paul.

    Sorry, missed your earlier reply, albeit too late for this issue.

    There are a few that will read, and probably more importantly, give intelligible 'translations' of the errors. There are the official ones that the dealers use, huge money even if you could get one. These obviously do everything including connect to Ducati in Italy and update the bike's firmware etc. Then there are the consumer versions; of which the OBDStar is probably the most evolved, though likely to most expensive up front. On this point the mainly phone based systems with an OBD dongle need an annual licence which will wind up costing more over time if you intend to keep the bike. The OBDStar can, if you wish, be updated to include new models but once you have it what's on the device is good for life, not just the next 12 months. Also not tied to one bike, will work with all Ducati models so long as they are supported by the installed version of the software.
     
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