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California 1400 hanging throttle

Discussion in 'Cal 1400 8V' started by guzziken, Jul 22, 2015.

  1. GTM®

    GTM® Administrator Staff Member GT di Razza Pura

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    There's your problem. I do not allow discussions of Diag or mapping on this site. You have the tools to solve this yourself. Reinstall the stock map and see if you have any ECU errors.
     
  2. V700Steve

    V700Steve High Miler GT di Razza Pura

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    I don't think you needed all the resetting, maybe was throttle learning, can't remember but it happened to me using factory PADS software. The single TB ecu is not like the CARC model ecu.
    I thought the same to reset it all but it's not like that.
    I would reboot it before starting all over, undo batt cables and such.

    If I had one of the Cali14's I would trash the dash & use one like Todd's no TC or cruise needed. All the troubles go away.
     
  3. MattKrajo

    MattKrajo Just got it firing!

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    Big thanks to you. Replaced that sensor fixed hanging throttle and also fixed my hot starting issue. I also noticed original sensor was little damaged. I guess it is because the cable was routing just between engine cylinder ribs where is very high temperature. I use aluminium tape and I wrapped new cable to prevent from heat.
     

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  4. Ste

    Ste Just got it firing!

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    that's great to hear. stay safe and well over there.
     
  5. The_Randominator

    The_Randominator Just got it firing!

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    I just now read through this thread, and I know what everyone is going through as I have experienced it on my C14, throttle would hang, sometimes just shoving it to off position would do the trick, found it very unnerving on slow riding in traffic as it would jolt me forward often.
    The solution was provided by the tech at the dealers garage, he didn't even flinch, as soon as I explained he knew what I was talking about, he said he will "reset the throttle position sensor", and I guess he did, because after that I have had no issues ever again, even now 10000 miles later, I have never had an onset
     
  6. FrankZ

    FrankZ Tuned and Synch'ed GT di Razza Pura

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    My Eldorado started exhibiting symptoms of this problem about a month ago. I tried going through this thread as best as I could, to try to see if anybody actually found a highly common link to the source of this. I don't have enough patience to read this whole thread start to finish, but tried to pick up enough on actual efforts made to solve this problem. Several mentions of bad clutch switches led me to test mine, on both contacts, with an ohm meter, which tested good. MotorGoose's post about replacing a cylinder head caught my attention. My bike was due for a valve adjustment anyway, so I went ahead and did it. My fear was that I may have a burned valve, due to too tight valve lash. Thankfully, they were actually loose when I inspected it, and I adjusted them to spec. I noticed that the spark plug gap opened up considerably, which I reset to spec's for now, until I order new plugs. I took the bike for a ride, the throttle hung at about 2000 rpm at the first stop sign that I came to, which made me think I failed to solve my problem. However, it hasn't had any problem since. I've taken it for about 4 rides since (on different days, about 3-4 hours each, maybe a half-hour break along the way) with no return of the problem.

    I can't say for sure that my problem is solved, time will tell, won't have a chance for extensive riding until Spring. I just wanted to put this out there to reinforce that the basics need to be in good condition for fuel injection to function properly. These actions can be done for free, if you do your own maintenance. Even though this problem makes me think that some component, likely one that can fail when it gets hot, would be the source of this issue, keep in mind that this system is really Artificial Intelligence, thinking on it's own on adjustments it can make to correct running issues that it detects. If the basic mechanical components exceed the tolerances that the system was designed around, it will do unpredictable things.
     
    James Chance likes this.
  7. James Chance

    James Chance Cruisin' Guzzisti

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    I've had this happen to my 2014 Cali1400 Custom around a half dozen times over the 5 years I've had the bike. Thankfully, a good, fast, large winging of the throttle settled it all down. I checked the clutch switch also. No bueno. The only bit of trivia I can contribute is that every time it's happened, the ambient temps have been over 90F. A couple of those times, it was well over 100F. For that one reason, I've not attempted to troubleshoot beyond the clutch switch. Whatever it is, it seems to span the whole Guzzi 1400 engine production, all the models. Anyone who's had Aprilia's ever run across this issue on that brand? That would point to the Marelli blackbox, seems to me. FWIW (I know, not much)...
     

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