Efi idle adjust??
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6th Gear
Joined: Apr 2006
Posts: 11
Likes: 0
Efi idle adjust??
I want to lower the idle on my 2003 Softail efi. The dealer will not do it for me. They say it will lower the oil pressure...ect. Whatever. I am doing it regardless. I think it idles way to high at 1050 rpm. I want to lower it to 875 or so. Has anyone done this? What is the easiest way? Will a power commander accomplish this?
Thanks
Thanks
Road Master
Joined: Jan 2006
Posts: 899
Likes: 0
From: South Carolina
RE: Efi idle adjust??
ORIGINAL: chopperchuck
=either a power commander or a sert will work...the dealer also has a digital tech that will reduce the idle....
=either a power commander or a sert will work...the dealer also has a digital tech that will reduce the idle....
I don't know about the SERT...
Road Captain
Joined: Sep 2005
Posts: 583
Likes: 5
From: Maine
RE: Efi idle adjust??
https://www.hdforums.com/m_222256/tm.htm
Check out the thread above. It explains the SERT and covers the Idle adjustment. Personally, I would not lower the idle.
Check out the thread above. It explains the SERT and covers the Idle adjustment. Personally, I would not lower the idle.
Road Master
Joined: Mar 2006
Posts: 760
Likes: 4
From: Plano, Texas
RE: Efi idle adjust??
I agree, the idle speed is set to 1000 RPM for a reason. It wasn't just made up for the hell of it, maybe you should take the advice of a trained mechanic.
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[IMG]local://upfiles/8977/FC752F76EB37487C8005953B301E9A96.jpg[/IMG]
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Thread Starter
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6th Gear
Joined: Apr 2006
Posts: 11
Likes: 0
RE: Efi idle adjust??
Yes, I agree, and yet I'm still going to lower it. It sounds ridiculous at 1000 rpm with my V&H Big shots. What's worse ist it idles at 1200 when it's cold. Why Harley has to make this so difficult is beyond me. My friend has a carbed bike and it idles at 900 rpm and sounds perfect! I should have bought a carb
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Outstanding HDF Member
Joined: Apr 2006
Posts: 2,537
Likes: 21
RE: Efi idle adjust??
With a Fuelie, the ECM controls the cold idle.... 1200 is good.... The ECM can go down to 950 at op temp (260 degrees).
Should you decide that you are going to lower the idle yourself, understand that you will be starving your motor from the very fluid that you are relying on to keep it thumping... Motor Oil...
Plus, without the correct idle, you are preventing the other associated sensors and actuators from working in concert to keep the motor at operating peak.
This is especially true on bikes that have PC's... as they are merely signal thiefs and modifiers of the true sensor/actuator data.
JMPO
Should you decide that you are going to lower the idle yourself, understand that you will be starving your motor from the very fluid that you are relying on to keep it thumping... Motor Oil...
Plus, without the correct idle, you are preventing the other associated sensors and actuators from working in concert to keep the motor at operating peak.
This is especially true on bikes that have PC's... as they are merely signal thiefs and modifiers of the true sensor/actuator data.
JMPO
Ultimate HDF Member
Joined: Feb 2006
Posts: 5,939
Likes: 3
From: TX
RE: Efi idle adjust??
There is a reason for the higher idle, but if you really want to lower it, here's how you can.
Remove the air filter and the backplate.
Looking into the throat of the throttle body, on the right side, you will see a small round machined hole that has an convex shaped aluminum insert. It's probably ~1/4" diameter (from memory, which gets worse by the day). If you use a pick or a really small slot blade screw driver, you can pop that convex cover out. Behind it sits the idle screw.
If you have difficulty locating it, once you have the filter & backplate removed, you can look at the throttle linkage (where the cables attach to the throttle body) and see the back side of the idle screw. Use that as a reference to locate the block off plate that "hides" the idle screw.
Remove the air filter and the backplate.
Looking into the throat of the throttle body, on the right side, you will see a small round machined hole that has an convex shaped aluminum insert. It's probably ~1/4" diameter (from memory, which gets worse by the day). If you use a pick or a really small slot blade screw driver, you can pop that convex cover out. Behind it sits the idle screw.
If you have difficulty locating it, once you have the filter & backplate removed, you can look at the throttle linkage (where the cables attach to the throttle body) and see the back side of the idle screw. Use that as a reference to locate the block off plate that "hides" the idle screw.