Clean your IAC
Tourer
Joined: Sep 2013
Posts: 363
Likes: 1
From: New England
My 06 EGS runs find , gas mileage is great ,just when it sits in traffic in warm weather for a little period of time it starts idling low , have to give a little throttle to keep it going . After it cools off its fine .
Novice
Joined: Jul 2012
Posts: 17
Likes: 0
From: Maryland
I suspect I'm having an issue with my IAC. However, all the info I've read regarding cleaning says there's a port just in front of the butterfly. Well, not on my 2012 FLHX. If I open the butterfly there is what appears to a port at about 1 oclock. There's also black thing at noon behind that port. I assume one of those is the IAC port. I'll see if I can get a good picture of it when I get a chance.
BTW: My bike runs great, but it will stall at idle once it's warmed up. It has just over 10k on it.
BTW: My bike runs great, but it will stall at idle once it's warmed up. It has just over 10k on it.
Road Warrior
Joined: Jun 2008
Posts: 1,602
Likes: 3
From: Southeastern Michigan
FYI. This practice should primarily be aimed at 2007 models. The intake design had been changed in the 08's and at least once since. Eliminating the need to do it.
The reason the 07's are susceptible to problems is that the IAC port is in the line of fire of the oil mist coming from the breather system. I also think the open element of the SE AC's (and the like) compound the issue by changing the pressure dynamics over the stock AC.
The reason the 07's are susceptible to problems is that the IAC port is in the line of fire of the oil mist coming from the breather system. I also think the open element of the SE AC's (and the like) compound the issue by changing the pressure dynamics over the stock AC.
Cruiser
Joined: Mar 2008
Posts: 116
Likes: 0
Best thing I found to clean your IAC Sensor is CRC Mass Air Flow Sensor Spray Cleaner for about $8.99 4-5 short blasts in the sensor hole while cycling the sensor with a lint free cloth underneath the sensor and also clean your Induction Module after with CRC Throttle Body & Intake Cleaner Spray @ 5.99 what a difference my SG runs like new! can buy both at Napa or your local parts store.
Seasoned HDF Member
Joined: Oct 2006
Posts: 5,977
Likes: 85
From: Nevada
Turn the ignition on. Turn the run/stop switch on and off while spraying cleaner into the IAC orifice.
Grand HDF Member
Joined: Jan 2012
Posts: 4,459
Likes: 2,893
From: Oklahoma
It is a bit of a curse, but I am rather **** about correct names. I double checked the parts diagrams and after 2007 there is no IAC listed on the diagrams for the touring machines. They now show a MAP (manifold absolute pressure) sensor. They do indeed get dirty and I have cleaned mine a few times with the MAF cleaner fluid. It seems ideal for that purpose.
Intermediate
Joined: Apr 2015
Posts: 43
Likes: 1
From: Ohio
I see this is an older post, from what I am reading this describes what issue I am having.
my idle is staying at 1,000 maybe dropping to 950 or so. when at a stop light it feels like the engine is about the die, as the engine feels like it is shaking more then normal. I will say this is an very intermittent issue.
I would like to know if anyone ever posted any pictures of cleaning the IAC if they did where would I look for them?
thanks
my idle is staying at 1,000 maybe dropping to 950 or so. when at a stop light it feels like the engine is about the die, as the engine feels like it is shaking more then normal. I will say this is an very intermittent issue.
I would like to know if anyone ever posted any pictures of cleaning the IAC if they did where would I look for them?
thanks
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Road Master
Joined: Sep 2010
Posts: 752
Likes: 23
From: Acton, CA
I see this is an older post, from what I am reading this describes what issue I am having.
my idle is staying at 1,000 maybe dropping to 950 or so. when at a stop light it feels like the engine is about the die, as the engine feels like it is shaking more then normal. I will say this is an very intermittent issue.
I would like to know if anyone ever posted any pictures of cleaning the IAC if they did where would I look for them?
thanks
my idle is staying at 1,000 maybe dropping to 950 or so. when at a stop light it feels like the engine is about the die, as the engine feels like it is shaking more then normal. I will say this is an very intermittent issue.
I would like to know if anyone ever posted any pictures of cleaning the IAC if they did where would I look for them?
thanks
Second picture below shows a dirty TMAP sensor, the little diode in the middle should be all yellow, no black (black stuff is all gunk). I replaced mine, but you can clean it while it is in place if it's not fowled up too bad.
Last edited by caberto; Aug 3, 2015 at 08:53 AM.
Supporter
Joined: Jan 2007
Posts: 15,788
Likes: 5,625
From: along the shore of Mishigami
Most symptons I've read for a fouled IAC is the after a run at higher rpms and then coming to a stop, traffic control device, the idle is hard to find. That usually is indicative of a dirty IAC. When the idle drops and the engine feels like it's going to stall but no problems driving off, is usually the heat management system cutting off fuel to the rear cylinder to prevent excess heat to the driver. Check your owners manual on how to "enable" or "disable " the heat management program.