Mike Tryon
Eldorado FTW!
I had the sticking throttle problem too. Turned out that my Temp sensor was going bad, once it was replaced never happened again.
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California 1400 hanging throttle
- Thread starterguzziken
- Start date
Mark Fechtel
Just got it firing!
My 2014 California does that as well. I've got 7700 miles on it now; I didn't notice it at first, but on any downhill with throttle closed the loss of engine breaking is very noticeable at 3000 rpm. When coming to a stop in gear with the clutch in, it wants to idle at 1500+ rpm. If I put it in neutral and let out the clutch, it drops to normal idle of 1000-1100 rpm. I figured it had to be the way the ECU was programmed, but I'd like to know more about the temperature sensor Mike mentioned.
kiwi dave
GT Reference
If you're a fan of engine braking (as I am), the cure for the 1400 California is Todd's reflashed ECU, as advertised on the store this site. You would have to take your bike to him, as I don't think he offers a reflash kit for this model.
An alternative which offers a slight improvement can be achieved by disconnecting the lambda sensors. It doesn't show up as an error on the dashboard, but it will on some diagnostic programs. Doesn't appear to hurt anything, and the idle appears to drop a bit too.
sir fred
Cruisin' Guzzisti
Does your cruise control work?..if not it is the clutch switch.
Mark Fechtel
Just got it firing!
My cruise control works as designed, and it doesn't seem to matter which throttle map it's in (although I have to admit I have never used the rain mode here in Phoenix...).
roadventure
GT Reference
Check the clutch switch. No kidding. I had the exact same symptoms when I broke my clutch switch. Replaced it and the issues went away.
Guzzi_Lou
Cruisin' Guzzisti
Thanks for sharing and please update us in a few weeks. Do you recall where the temp sensor is?
Mark Fechtel
Just got it firing!
I will have the dealer check the switch, since it's in the shop now due to clutch slippage.
All, the "Clutch switch" seems to have been identified as the potential source of several problems with the Cali 1400. Some with potential serious consequences.
What, if any, early warning symptoms are there?
Is clutch switch failure more likely on a given year / model?
Does it make sense to change the switch at the earliest opportunity, in the hope that the replacement is less likely to fail?
What, if any, early warning symptoms are there?
Is clutch switch failure more likely on a given year / model?
Does it make sense to change the switch at the earliest opportunity, in the hope that the replacement is less likely to fail?
Loosy gussi
Tuned and Synch'ed
I was helped diagnosing my faulty clutch switch by gurus here. try the cruise control. .when it doesn't work, clutch switch was
bad. My switch lasted a couple years before failing, 2014 cali touring, .. factory part about $80-90 US or solder on new micro-switch ( save money) don't fix if isn't broken
I couldn't agree more I've yet to have an issue with any of my Guzzis that one or more of the Gurus, and or individual contributor hasn't addressed logically, completely and politely.
I had a plan to save money on M/C maintenance. Enabled our number 1 son to get his motorcycle mechanic certification at the local technical college. Even brought a '96 Sport 1100 to get him working on Guzzi's while he was at school. Now he has his certificate, is earning his own money, has his own bikes, and "is in a relationship". I have to make an appointment for any work that doesn't result in faster and/or louder.
Re: Clutch switch, if the clutch switch is the problem, does it not throw a SERVICE code on the dash?
Also, if the clutch switch is causing the engine braking to cut out at 3000 RPM, does the cruise control continue to operate in some circumstances?
My situation:
Stock filter and airbox.
Moaning Whale done. (Air box not
Mistral pipes installed
Cruise control works fine
Valves checked, .006" intake and .008" exhaust
Engine braking cuts in above 3000 RPM and cuts out below 3000 RPM. VERY repeatable. Like a switch is being thrown (not gradual) Hot or cool engine, like the ECU is controlling it. Down a long grade with throttle closed, engine braking goes on, off, on, off, on, off, as RPMs float above and below 3000.
I've noticed the other "hanging throttle" issue on a few occasions when braking to a stop. As others have stated, idle drops quickly to normal when clutch is pulled. I wonder if it's just the lack of engine braking that I'm feeling in that RPM range? Behavior is VERY similar to simply rolling throttle on slightly during engine braking, so it seems as if air is being added to the engine. If Todd's reflash kills this behavior, then it has to be in the mapping, except I believe at least one party in this very lengthy thread has indicated that the problem continues even after the whole Guzzitech enchilada(??)
Another 2016 Eldorado owner told me, as we discussed this problem, that he finds engine braking to be "more aggressive" in Veloce mode, but hasn't really watched closely connection between RPMs and engine braking. I'm going to change modes and see if I notice a change in engine braking performance. TBD...
Also, if the clutch switch is causing the engine braking to cut out at 3000 RPM, does the cruise control continue to operate in some circumstances?
My situation:
Stock filter and airbox.
Moaning Whale done. (Air box not
Mistral pipes installed
Cruise control works fine
Valves checked, .006" intake and .008" exhaust
Engine braking cuts in above 3000 RPM and cuts out below 3000 RPM. VERY repeatable. Like a switch is being thrown (not gradual) Hot or cool engine, like the ECU is controlling it. Down a long grade with throttle closed, engine braking goes on, off, on, off, on, off, as RPMs float above and below 3000.
I've noticed the other "hanging throttle" issue on a few occasions when braking to a stop. As others have stated, idle drops quickly to normal when clutch is pulled. I wonder if it's just the lack of engine braking that I'm feeling in that RPM range? Behavior is VERY similar to simply rolling throttle on slightly during engine braking, so it seems as if air is being added to the engine. If Todd's reflash kills this behavior, then it has to be in the mapping, except I believe at least one party in this very lengthy thread has indicated that the problem continues even after the whole Guzzitech enchilada(??)
Another 2016 Eldorado owner told me, as we discussed this problem, that he finds engine braking to be "more aggressive" in Veloce mode, but hasn't really watched closely connection between RPMs and engine braking. I'm going to change modes and see if I notice a change in engine braking performance. TBD...
kiwi dave
GT Reference
Interesting. I prefer the Turismo mode, because I experience more engine braking, especially with the stock ECU.
I'm sure I read somewhere that engine braking is also affected by the traction control setting with the strongest braking with traction control off. That being said I have mine on level 1 and haven't noticed any problems.
The engine braking you describe is the same as my Touring. I believe the map is adding some fuel on overrun when the revs drop below around 3000rpm. If you want more engine braking you have to drop down enough gears so the overrun is in a higher rev range. The 'hanging throttle' referred to, I also experienced when my clutch switch went faulty and threw a SERVICE code. In this case, the bike would hold a 1500rpm idle at certain times.
Stephen
Stephen
kiwi dave
GT Reference
Yeah, the dreaded "limp home" mode was activated. I couldn't get up my driveway when my bike was in this mode. Well, to be fair, I wasn't trying to get home, but to take my bike to the dealer. Perhaps there should be a "limp to the dealer" mode.
Actually, I believe it's the "Fly by Wire" throttle system opening the butterfly on command by the ECU. Adding fuel would just foul the plugs, and it's actually restricted manifold airflow/maximum vacuum, not lack of fuel, that causes the engine to retard RPM's. Plus, adding fuel would eliminate or decrease popping on trailing throttle, which is actually the opposite of what happens, with the engine running VERY lean in that range with throttle closed.
The poster who mentioned engine braking cutting in and out while in the midst of a turn makes an extremely good point regarding the safety of the operator. This is really an issue that Guzzi should address with an ECU update.
Does Todd's reflash affect the throttle "fly by wire" function, or just address fueling, lamda sensor, and timing performance?
Loosy gussi
Tuned and Synch'ed
Mike, can you tell me more about the Temp. Sensor, where it's located? Ect. Did you only replace just the sensor, or was anything else done to your bike? how did you diagnose? This weekend my idle was sticking @ about 3000 rpm again. Very warm outside temp. I was driving up a winding mountain. I just recently replaced my clutch switch. Just rode it a moment ago to check the cruise control worked. Yes It did. Now I am looking for another cure, you may have it. Seems to only happen when eng. Is very warm , thought I had it fixed
Mark Fechtel
Just got it firing!
The dealer says my clutch switch checks out OK, so I will check the deceleration issue when I get it back. Cruise control has always worked on it. They finally got the clutch slippage problem figured out, so I should get it back soon.
roadventure
GT Reference
Were you told why they thought the clutch was slipping?