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CB1100 Idle speed instability problem
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peterbaron Online
Lives On Two Wheels

ON, Canada
Posts: 9,150
Joined: Jan 2016
Post: #1421
RE: CB1100 Idle speed instability problem
NP. ... when you asked me to do that test, I already new what your plan was.., very smart Beer

"Drop a gear and disappear"®
'14 CB1100 DLX-#170 ® 26K kms (FOX - pleasure horse)
'14 CB1100/ABS ® 113K kms (MYSHOL - white draft horse)
'13 CB1100/c-ABS - 56K kms - sold
*Grand Chancellor*
07-28-2023 03:13 PM
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max Online
Road Warrior

Auckland New Zealand
Posts: 1,545
Joined: Sep 2017
Post: #1422
RE: CB1100 Idle speed instability problem
(07-28-2023 03:13 PM)peterbaron Wrote:  NP. ... when you asked me to do that test, I already new what your plan was.., very smart Beer

Yeah so please ignore the pm reply, i read the result wrong the first timeWink

Boy that was quick!!

sometimes i get lucky, and the more i practice the luckier i getCool
and; It's always something simple......just not always simple to find.
2020 cb1000r chromos red
2010 cb1100 candy red
2006 cb919 hornet black
1977 cb550 k3 1st owner
07-28-2023 03:29 PM
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peterbaron Online
Lives On Two Wheels

ON, Canada
Posts: 9,150
Joined: Jan 2016
Post: #1423
RE: CB1100 Idle speed instability problem
İmage

2 x pm sent

"Drop a gear and disappear"®
'14 CB1100 DLX-#170 ® 26K kms (FOX - pleasure horse)
'14 CB1100/ABS ® 113K kms (MYSHOL - white draft horse)
'13 CB1100/c-ABS - 56K kms - sold
*Grand Chancellor*
(This post was last modified: 07-28-2023 04:46 PM by peterbaron.)
07-28-2023 04:11 PM
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Lord Popgun Online
I find your lack of RLETs disturbing

Virginia Beach
Posts: 10,442
Joined: Apr 2013
Post: #1424
RE: CB1100 Idle speed instability problem
Pb,

That is a chassis ground on pins A23 and A24. They go to Popgun 1 and Popgun 2. The ground is supposed to inhibit snarky posts like this one. Doesn't work, as you can see... Big Grin

If you come to a fork in the road, take it!
2013 CB1100
2012 ST1300
Holder of the CB1100Forum Secret Decoder Ring
07-28-2023 07:25 PM
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Lambchops Offline
Break-In Period

ASIA
Posts: 20
Joined: Mar 2019
Post: #1425
RE: CB1100 Idle speed instability problem
Hi everyone it's me again back to share my experience with the idle instability issues after 3 years.

I posted in 2020 about findings in Japan that dealt with the idle issues via a ECU update here: http://cb1100forum.com/forum/showthread.php?tid=15710

It seemed like the general consensus then was that it is an IACV issue and not ECU. But lately, from what i've read it sounds like the ECU update patch has been shared with EU and has worked. Also, it appears that the older ECU part numbers have been superseded with a newer part number.

I have replaced my IACV twice and still encountered the same issues so I believe it it might be solved with either an ECU update or a new ECU.

DDUMZI has shared his experience here with his ECU: http://cb1100forum.com/forum/showthread....035&page=7

I'll update again if an ECU replacement solves the issue. Wish me luck Smile
09-14-2023 07:28 PM
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Cormanus Offline
Moderator

Queensland, Australia
Posts: 20,660
Joined: Dec 2013
Post: #1426
RE: CB1100 Idle speed instability problem
Good luck, Lambchops!
09-14-2023 08:47 PM
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