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Hi Dave, no issues with the bike since the replacement of the IACV motor. I haven't put the bike through a repeated stop-start scenario, however I have ridden several hundred miles in a variety of traffic and temperatures that I would expect to exacerbate any lingering issues. I'll probably do the stop-start test in the coming days as I'll be off work.
Any progress on your ride? Has Beardy gotten back to you? Hope all is well.
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(12-16-2016, 12:30 AM)johnf514_imp Wrote: Hi Dave, no issues with the bike since the replacement of the IACV motor. I haven't put the bike through a repeated stop-start scenario, however I have ridden several hundred miles in a variety of traffic and temperatures that I would expect to exacerbate any lingering issues. I'll probably do the stop-start test in the coming days as I'll be off work.
Any progress on your ride? Has Beardy gotten back to you? Hope all is well. Hi John. Thank you for your reply. No progress with my bike. Beardy reply was bad news - dealer said no new map was available. Please keep me updated. My bike has been parked for two weeks now because I just don't enjoy riding it the way it runs. I rode the XR650L last weekend, and the VFR800 the weekend before.
Hi John and All. Can I get some feedback please? Can you guys listen to your Idle Air Control Valve (IACV) cycle when you turn your ignition key on and describe the sound you hear? It's located on the RH side throttle body, between the throttle body and the air filter. You have to listen very carefully because the sound of the electric fuel pump is much louder (please don't confuse the fuel pump sound for the IACV sound). Today, the sound of my IACV cycling when I turn on my key is extremely faint - it used to be much louder, and this is leading me to believe that it may be faulty. It makes a faint clicking noise, at what I would guess to be maybe 200 - 300 hz. I am starting to believe that maybe my IACV is faulty, and this is causing the high RPM idle (that sometimes is low RPM idle and stalling). I don't want to spend the $ for a new IACV and go through all the work to replace it unless I have a high level of confidence that this will correct my high idle problem. Thank you.
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Hi Fellas,
Sorry, I posted my update on another thread.
The dealer tried to load the new map that they had been sent by Honda, but the computer said that the Map I had was the same version number and did not need updating. Either they thought my bike had an older version of the map or they hadn't updated the version number of the new map.
It's been referred back to Honda and I'm waiting for the dealer to get back to me.
It's happened twice in the last week, dawdling thru traffic 2-up. Once it stalled at the lights which was most embracing. Made my misses nervous too....
I'll chase them Monday to find out what's going on. I may take it up with Honda, directly, and skip out the dealer...
k
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My '13 was afflicted with this disorder earlier this year for a couple of months. It might've been brought on by the slightest of overfills during an oil change in the spring, but I emphasize slight and might.
At one point, during a break in a ride, upon restarting and riding slowly for a mile, the normally rock steady 1100 rpm idle faltered. Then faltered again and stalled at a stop sign. Within an hour, that behavior righted itself, but shortly thereafter, it started to favor 1800rpm for warm idle. Symptoms were once warmed up, the bike would not return to normal warm idle. If shut off and restarted warm, it would idle at 1100, but as soon as I went above 1800, it would lock on to 1800 as it's warm idle speed again.
Interestingly, while decelerating during riding (throttle off), it would decel normally down through about 3000rpm, then at about 2600? rpm something would switch and you could tell it was not slowing as much, a sign it was no longer headed down to normal idle of 1100, but had instead plotted a new decel path to 1800 rpm.
This continued for a couple of months and persisted for some time after an oil change which erred on the low side of the full range (does anyone ever know whether the ground is truly level for a precise oil level check?), the behavior persisted. I remember it bugging me when riding down to my brother's house in Monterey, the night before my track day at Laguna Seca in November, a trip of 100 miles at Cali freeway speeds (80-90mph). I stopped at the very last exit ramp to check my phone and I clearly remember the idle was annoyingly high.
Sometime during the track day, maybe before the on-track portion (sorry, can't remember), the problem disappeared and normal idle returned. It fixed itself. Did the full day of 30min at a time flogging the bike around the track help? The occasional run beyond redline? I honestly don't know if it was coincidental or causal.
It continues to behave well, but I wouldn't be surprised if the high idle issue returns. Will keep you posted if it acts up again. Hope it helps.
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Hi Rolls, thanks for sharing. Interesting that your CB fixed itself. I hoped for this when my high idle issues occurred but did not have any luck there. Did you notice additional heat fuel consumption on your bike when it was in the high idle condition?
Hi Beardy, hope the dealer sorts things out for you. My dealer had a Honda Tech come out to diagnose the issue and the tech is the one that recommended a new IACV motor. Not sure about your maps, but definitely best to have a company rep take a look.
Hi Dave, I uploaded a video of my bike's ignition sound for you, shot from the RH side of the bike. Let me know if you need anything else.
https://www.youtube.com/watch?v=SsKgL0FdgYA
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(12-19-2016, 03:13 AM)johnf514_imp Wrote: Hi Rolls, thanks for sharing. Interesting that your CB fixed itself. I hoped for this when my high idle issues occurred but did not have any luck there. Did you notice additional heat fuel consumption on your bike when it was in the high idle condition?
Hi Beardy, hope the dealer sorts things out for you. My dealer had a Honda Tech come out to diagnose the issue and the tech is the one that recommended a new IACV motor. Not sure about your maps, but definitely best to have a company rep take a look.
Hi Dave, I uploaded a video of my bike's ignition sound for you, shot from the RH side of the bike. Let me know if you need anything else.
https://www.youtube.com/watch?v=SsKgL0FdgYA
I think fuel consumption increased by about than 10%, but I haven't done the data crunching to validate that feeling. While I'm quite good at capturing fill up data (I snap a photo of pump, odometer and trip odo after each fill) I haven't been good about using those pics to go back and plot mpg over time. Data's all there though, if I ever get around to it. :-)
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(12-19-2016, 03:13 AM)johnf514_imp Wrote: Hi Rolls, thanks for sharing. Interesting that your CB fixed itself. I hoped for this when my high idle issues occurred but did not have any luck there. Did you notice additional heat fuel consumption on your bike when it was in the high idle condition?
Hi Beardy, hope the dealer sorts things out for you. My dealer had a Honda Tech come out to diagnose the issue and the tech is the one that recommended a new IACV motor. Not sure about your maps, but definitely best to have a company rep take a look.
Hi Dave, I uploaded a video of my bike's ignition sound for you, shot from the RH side of the bike. Let me know if you need anything else.
https://www.youtube.com/watch?v=SsKgL0FdgYA Hi John,
Thank you so much!!! My bike used to sound exactly like this, but now (what I believe to be the IACV motor sound) is MUCH fainter. I believe the higher frequency buzzing sound is the fuel pump, and the lower frequency sound is the IACV. This seems to indicate my IACV motor is not functioning properly now. BTW - my battery died yesterday! Shut my motor down at a stoplight because the 1,500 RPM idle was bothering me and it wouldn't restart. Had to push it off the road and then bump-started it back to life. I am going to replace my battery first and see if this has anything to do with my IACV sound. Thanks again John!!!
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Dave, you're most welcome. I hope the issue is only a faulty battery, and if not, time to look into replacing the IACV motor.
When you change the battery, it might be worth it to fully reset the bike by holding down the brake lever for several seconds with the battery disconnected. This may help when reconnecting the new battery and getting the ECU back to a reset state.
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(12-20-2016, 05:12 AM)johnf514_imp Wrote: Dave, you're most welcome. I hope the issue is only a faulty battery, and if not, time to look into replacing the IACV motor.
When you change the battery, it might be worth it to fully reset the bike by holding down the brake lever for several seconds with the battery disconnected. This may help when reconnecting the new battery and getting the ECU back to a reset state.
This is the first I have read of this "ECU Reset" procedure.
Is it "CB1100 specific" or just something that has worked for you with other bikes in the past?
What type of ECU parameters is this procedure supposed to affect?
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(12-20-2016, 05:43 AM)Gumby 1100_imp Wrote: (12-20-2016, 05:12 AM)johnf514_imp Wrote: Dave, you're most welcome. I hope the issue is only a faulty battery, and if not, time to look into replacing the IACV motor.
When you change the battery, it might be worth it to fully reset the bike by holding down the brake lever for several seconds with the battery disconnected. This may help when reconnecting the new battery and getting the ECU back to a reset state.
This is the first I have read of this "ECU Reset" procedure.
Is it "CB1100 specific" or just something that has worked for you with other bikes in the past?
What type of ECU parameters is this procedure supposed to affect?
This is the first I have read of this "ECU Reset" procedure.
Is it "CB1100 specific" or just something that has worked for you with other bikes in the past?
What type of ECU parameters is this procedure supposed to affect?
And which brake lever? 'Hold down' suggests the rear brake. Is that right?
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