07-09-2020, 01:05 AM
(07-07-2020, 11:21 PM)Dave_imp Wrote: If an ECU reset is the root cause, then why does replacing the IACV completely and permanently correct the problem?
Had my bike to the dealer twice, contacted Honda factory directly, and personally spoke to a Factory Honda service representative and was told absolutely each time that there was no ECU remap available from Honda in the USA.
An ECU reset is not the cause. Rather it is likely a faulty IACV sending an error to the ECU which then responds erroneously to rectify it. Rather than replace the IACV which solves the problem, the ECU can be rewritten to ignore such errors from an IACV.
In any case it appears that this ECU “update” is a fix that isn’t officially pushed out worldwide. Even in Japan, the dealer will only run this fix for customers who complain specifically about the idle issue. It’s not something that is done to every CB1100 that comes in for a routine service. Therefore it isn’t really an update.
It is unlikely that Honda will put out a fix like this in the USA as it would mean admitting some kind of fault.
When you ask your American Honda representative, most probably they will run a search in their system and see that there isn’t an update available. However if you can push them to check with Honda Japan with proof of pictures they might have a different response. And that’s a big IF.