02-11-2017, 04:17 AM
(02-06-2017, 08:03 PM)beardyweirdy@me.com_imp Wrote: Hey All,
Just thought I'd let you know how I was going on with the on going Idle Prob.
I managed to get the bike back to the dealers yesterday and they successfully re-flashed the ECU with the latest Map from Honda. I'm not sure why it worked this time but I had called Honda UK to question what was going on and they offered the dealer some tech support and pos. a new disk/Software.
The dealer gave me a 'Honda ECM Update Report'. It states the previous ECUID which is 01019D0102
and an After the Update ECUID of 01019D0103. I don't know if this is specific to my bike or a general code for the re-flash.
There is also a note at the end of the report giving the code: 38770-MGC-D53_-M1.rwf.
I have no idea what that code refers to but it's the only other info on the report that isn't obvious stuff like date, VIN, milage etc....
After the re-flash I gave it a celebratory thrashing followed by a 30 min trawl thru London rush hour traffic, trying my best to emulate the riding style that had usually preceded the fault. It has mainly occurred when two up in town and dawdling. I was on my own yesterday but I road as tho I was carrying a pillion. I dragged the back brake to put the motor under load and slipped the clutch. I also sat in traffic and didn't cut thru and lane split so much as I would do with someone on the back.
I couldn't get it to show the fault. I let the revs fall to tick over and they stayed solid at 1050. Now I don't know if it will stay like that. We'll have to see what happens over the next week or so. I have a week or so at home so I'll be taking my girlfriend into work most days next week. That will give us a good test. But I'll keep my eye on it and report back.
On a side note, It has reset all the good things that Guhl Motors did to my ECU. I'm going to the USA on a work trip in a couple of weeks, so I'll take my ECU with me and get it re-done while I'm there.
I have spoken to Don at Guhl perviously and he's expecting the ECU. He said he'd go through it, work out what Honda had modified and then re-write their map to incorporate the Honda modifications.
I guess that way there is an option for you guys in the states to get the new map, via Guhl, if Honda USA isn't offering it to their customers.... if it works that is ;-)
It is interesting that the IACV replacement/overhaul seems to be working for some. I was going to test mine, as per the manual and see how it faired. Dave, did you run thru the diagnostic test in the manual? if so what did you find?
I'm not going to change anything else for a while tho, so I can really see if the new map is working for me .... Only change one thing at a time when testing and all that.
Which is another way of saying maybe it is the ECU?? The fact that unplugging my EOT sensor completely cures the idle problem (both high RPM and Low RPM / stalling) makes me believe it's the ECM, and not the IACV.