CB1100 Idle speed instability problem

[beardyweirdy@me.com_imp]

Hi Beardy, great write-up. Hope your trip to the states goes well.

I requested that the dealer not reset the ECU until they had resolved the high idle condition through other means. I think the ECU reset is a temporary fix, and the condition returns after a couple of months (this occurred multiple times).

I hope the high idle condition does not return for you, but if it does, I recommend requesting the dealer not mask the condition with an ECU reset.

Thanks John,

Did your dealer install a newer/latest version of the software on your ECU, when they reset it? Don't suppose they gave you a slip of paper with the version No. or ID did they?

I tend to agree that they may just be writing a setting to the ECU to ignore a warning or voltage change from a faulty component. It's much cheaper and faster to re-write the ECU than to remove the Throttle Bodies and replace, say, the IACV. I'll try this fix out and report back. If the problem comes back then I'll investigate components.

I am a bit disappointed that Honda haven't released a bulletin, stating the fix and what they have changed. I don't like not knowing what the problem is! I know it shouldn't matter but I'd just like to know!! ;-))