Slow idle
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Cruiser
Joined: Jan 2009
Posts: 184
Likes: 0
From: Oklahoma
Slow idle
This has happened to me a couple of times now. As I pull off the exit ramp my bike starts to idle very slow, then it stalls. My bike is EFI and a recently replaced my throttle and idle cable. Possibly need to reset the throttle values on my Power Commander?
This is likely an issue with the IAC and is somewhat common on the 07 bike. There is a harley technical bulletin on this.
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Jamie Long / Fuel Moto USA
The USA's Leader V-Twin EFI & Performance www.fuelmotousa.com
Contact 920-423-3309
Email jamie@fuelmotousa.com
Jamie Long / Fuel Moto USA
The USA's Leader V-Twin EFI & Performance www.fuelmotousa.com
Contact 920-423-3309
Email jamie@fuelmotousa.com
Thread Starter
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Cruiser
Joined: Jan 2009
Posts: 184
Likes: 0
From: Oklahoma
Someone tell me if I'm going about cleaning this correctly. On top, it looks like a round cylinder the circumference of a half dollar. On top of that sits a sensor. Do I spray cleaner around that sensor? There appears to be a port on the top of the inside of the induction module. Does this lead to the gunked up IAC? Can I squirt cleaner up this port?
Last edited by big_e78; Nov 3, 2009 at 04:54 PM.
Cruiser
Joined: Aug 2007
Posts: 154
Likes: 1
From: Mid Atlantic East Coast
big e, I've got an 07 Ultra that ran great few days ago, went to start next morning and wouldn't start..fired but wouldn't idle. I found one thread where someone said that if you open throttle part way and the bike starts, then the iac is good. Mine does start that way but dies when I let the throttle down. I'm still leaning towards the iac?....like to see the bulletin that FuelMoto is referring to. Nice if MOCO will fix out of warranty, but think I can tackle it if they won't. Haven't really seen anything else as to how to test the iac. I did spray clean inside the induction module at the iac, with rags stuffed towards the rear to keep any mess from going to the engine. Hope to hear more on this iac stuffs :-)
Thread Starter
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Cruiser
Joined: Jan 2009
Posts: 184
Likes: 0
From: Oklahoma
big e, I've got an 07 Ultra that ran great few days ago, went to start next morning and wouldn't start..fired but wouldn't idle. I found one thread where someone said that if you open throttle part way and the bike starts, then the iac is good. Mine does start that way but dies when I let the throttle down. I'm still leaning towards the iac?....like to see the bulletin that FuelMoto is referring to. Nice if MOCO will fix out of warranty, but think I can tackle it if they won't. Haven't really seen anything else as to how to test the iac. I did spray clean inside the induction module at the iac, with rags stuffed towards the rear to keep any mess from going to the engine. Hope to hear more on this iac stuffs :-)
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Seasoned HDF Member
Joined: Dec 2007
Posts: 8,341
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i had a simialar problem turned out to be the speedometer control modul it would idol low or die after a long hard run shut off and restart it would then run fine it also gave a intermitent check engine light but no codes.
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Road Master
Joined: Oct 2006
Posts: 832
Likes: 6
From: Vermont
Check out "TT-410: Big Twin Idle Improvements" dated August 3, 2009. It is specific to 2007 engine stalling and high idle problems.
I've had very sporadic spells (once or twice a year) of high idle and low idle/stalling issues with my '07. It's out of warranty but my dealer is trying to get pre-approval to update the ECM download and troubleshoot my bike in accordance with TT-410 at no cost to me.
Thread Starter
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Cruiser
Joined: Jan 2009
Posts: 184
Likes: 0
From: Oklahoma
Check out "TT-410: Big Twin Idle Improvements" dated August 3, 2009. It is specific to 2007 engine stalling and high idle problems.
I've had very sporadic spells (once or twice a year) of high idle and low idle/stalling issues with my '07. It's out of warranty but my dealer is trying to get pre-approval to update the ECM download and troubleshoot my bike in accordance with TT-410 at no cost to me.
I've had very sporadic spells (once or twice a year) of high idle and low idle/stalling issues with my '07. It's out of warranty but my dealer is trying to get pre-approval to update the ECM download and troubleshoot my bike in accordance with TT-410 at no cost to me.