OzSTOC
Honda ST1300 Section => Ask A Tech about your Honda ST1300 => Topic started by: Lonerider1 on September 30, 2016, 11:10:20 PM
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Has anyone seen/read this ???????? ;
Resetting the ECU
Apparently as part of the prep before the dealer hands over the keys, the mechanic resets the ECU starts the bike and lets it idle for around 15 minutes until the fan cuts in. In the 15 minutes the ECU creates a base map using all the info gathered from the O2, water temperature and possibly other sensors.
Smoother throttle response, pulls from much lower in the rev band in all gears and 6th is much more usable. Also seems to sound better.
This is what I did.
1.Completely disconnected the battery for 24h (my reading sources state 10 minutes to half an hour) I wanted to me sure.
2.Turn the key to on to get rid of any held power for about 30 seconds (probable not needed).
3.Reconnect Battery (make sure all other electrics are off)
4.Turn key to on
5.Start bike without touching the throttle.
6.Leave to idle (DO NOT TOUCH THE THROTTLE) for around 15 minutes until the fan kicks in (mine took 16 minutes).
7.Hit the kill switch.
8.Turn off the ignition.
9.Now you’re done.
If you do decide to give it a go please let me know what you think. Found this on a forum for the Honda Goldwing 1800 and a few other bikes.
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.... Smoother throttle response, pulls from much lower in the rev band in all gears and 6th is much more usable....
This sounds awesome :thumbs, at the moment I can't even use 6th gear (It's like I don't even have one ;-* :rofl)
But on a serious note, this sounds like something that may be worth giving a go, thanks for sharing :thumbsup
Cheers
Shiney
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Has anyone tried this, if so with what results?
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Sounds reasonable :think1
I think Shiney should do it first :grin (His bike has warranty :p
cheers
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Lol, I believe Draco is going to give it a go today or tomorrow, will let you know how it goes :thumbs
Sent from my SM-N9005 using Tapatalk
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Does anyone know if the ST1300 ECU is an "Adaptive ECU"?
If the ECU IS an Adaptive ECU, I can see the benefits of carrying out the above procedure.
If the ECU is NOT and Adaptive ECU, I'm not sure if the above procedure will result in any benefit!
I have carried out a similar procedure on a number of different bikes as well as cars.
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Lol, I believe Draco is going to give it a go today or tomorrow, will let you know how it goes :thumbs
Sent from my SM-N9005 using Tapatalk
:blu13 Yes Draco has completed this today (afternoon) I did as was instructed (BUT left it disconnected for 3hrs only) longest 3 hours EVER :well :well. reconnected, started (no throttle) allowed to idle 15 minutes fans came on a few seconds after 15, then donned my protective gear :cop :law and went for a short ride (over Clear Mountain) in the streets first and second had noticeably increased in pulling power, the throttle was smoother than before. As far as fuel difference I am now getting 24.7 kilometres per litre in 5th gear at 100kph....so Draco is one happy chap :runyay :hatwave :thumbs :blu13left
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Thanks Draco, that sounds good :thumb. Will give it a go on the weekend.
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Awesome work mate :hatwave
I'll have to do this myself :think1 :think1 It should remap the ECU for the aftermarket pipes on my bike :runyay
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Well done Draco......thanks for being our crash test dummy :thumbsup
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"24.7 kilometres per litre in 5th gear at 100kph"
That's an extraordinary economy. I think we'll be reading a lot of reports of ECU reboots.
Who's next?
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Will give this a try tomorrow. Had my :blu13 for nine years now which returns me 18km/ltr or 5.6 ltr per 100k. What's the worst that can happen? Will be next weekend before I can give it a run. Will report back in the future. Could become the 'start up' routine after a battery change.
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Tried this today but no luck ☹️️. Left battery disconnected overnight, turned ignition on(battery disconnected) turned ignition off, reconnected battery, tried starting but just wouldn't idle without throttle input, misses and stalls :'( managed to get it to idle after lot of throttle twisting and warming up. Now seems to be running very rough. Prior to disconnecting battery was idling and running perfectly. Is it possible there may have been some issues for which the ECU was compensating but now that the ECU has been reset the problem is showing up? Any ideas would be greatly appreciated.
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It sounds like the reason it isn't running right now is because the throttle was moved during the 15 minute remapping stage.
I would suggest disconnecting the battery, waiting 30 minutes, then reconnecting the battery again and see if it will idle without touching the throttle while the remaining takes place.
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Thanks Brother Shiney, throttle wasn't touched, just wouldn't idle. Disconnected battery for half hour, tried again, same thing, won't idle without throttle, just stalls☹️
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You might have to play with the idle screw to get it to idle properly instead of touching the throttle (if you do I would suggest doing the remapping again afterwards)
Unfortunately that is about it for ideas from me but I'm sure someone else will have some other ideas :thumbs
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Will give it a go later. Going for a ride on the Excess now 🤓
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Good luck brother, keep us posted with how it goes :thumbs
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Hmmm. Maybe the ECU reset is a risky endeavour, not to be undertaken if the bike is doing alright.
The "if it ain't broke, don't fix it" syndrome. >:()
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Hmmm. Maybe the ECU reset is a risky endeavour, not to be undertaken if the bike is doing alright.
The "if it ain't broke, don't fix it" syndrome. >:()
:blu13 Well mine wasn't broken but i just wanted to see if it would improve my now Wot thuh "NEW" bike of just 2000k ;-* and was very happy with the results it gave me, will be doing this again maybe later down the track :think1 :thumbs :runyay :hatwave :blu13left
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Hmmm. Maybe the ECU reset is a risky endeavour, not to be undertaken if the bike is doing alright.
The "if it ain't broke, don't fix it" syndrome. >:()
Can't see why disconnecting battery should have caused any problems, Unless there were issues which decided to manifest after ECU reset.🤓 Anyway had a great ride on the XS1100, will tackle the ST cup day🤓
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Started her up this morning, and everything seems back to normal, idling ok, no missing. Been going through some earlier posts Re: 5 way connector, will give that a clean out and change spark plugs tomorrow then try ECU reset again. Will report back on outcome 🤓
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That's good news.
Cheers,
Gary
Sent using another of Gadget's gadgets.
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Couldn't wait until tomorrow 🤓 So got stuck into it as soon as I got back from work. Pulled out the 5 way connector which was partially blocked, cleaned and refit. New plugs unavailable so sandblasted old plugs, washed in petrol and regapped, refit everything, performed ECU reset as per instructions, now purring like a kitten :like . Idle rpm was a bit high, 1100, reset idle to just under 1000 rpm now just need to take her for a ride tomorrow.
Thanks Lonerider for original post, and thanks Draco :thumbsup. Me happy now🤓
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Awesome news brother, let us know if you find it has improved anything :thumbsup
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That's great news Jdbiker. :runyay
Cheers,
Gary
sent using another of Gadget's gadgets.
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Troops, I just performed the ECU reset but instead of waiting hours I simply disconnected the battery, turned the ignition on for about 3 minutes. Then I turned the ignition off and reconnected the battery. Start the bike and let idle until the the fan turned on then off. (14+ mins on the clock). My results are no more intermittent misfire at idle. My exhaust is noticeably less rich. Throttle response is now instantaneous. I haven't ride tested it yet.
When idling the RPM was around 900 then at the ten minute mark the engine idle gradually rose to about 1100. No misfire at all and silky smooth.
I haven't performed this procedure since replacing the battery 12 months ago. This is my thought as a result. Whenever you disconnect the battery for whatever reason, after the re-connection perform this exact procedure. I basically connected the new battery started it and tool it for a ride up the road. If the ECU was in reset mode when I did that for the last twelve months I have been riding with a poor map setting hence that little misfire at idle and the rich exhaust scent in the garage in the morning.
I run BP 95 or 98 fuel only and the bike now has 135K on the clock. It is running like a new bike again. :runyay
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I've been following this thread with a bit of scepticism, wondering why the ECU (whatever that is?) would need re-setting. After all would not that have been done when the dealer when through the pre-delivery process when it was new? Well, that might be a BIG ask!!
However, it makes sense to me that perhaps after a new battery has been installed, and this recommended process wasn't followed, the engine might not be running as intended.
Despite my ST 1300 being just on five years old, but bought "new" by me just over three years ago, and now with only 28K on the clock, it does not run as smoothly as I would like - after I installed a new battery around 18 months ago.
Troops, I just performed the ECU reset but instead of waiting hours I simply disconnected the battery, turned the ignition on for about 3 minutes. Then I turned the ignition off and reconnected the battery. Start the bike and let idle until the the fan turned on then off. (14+ mins on the clock). My results are no more intermittent misfire at idle. My exhaust is noticeably less rich. Throttle response is now instantaneous. I haven't ride tested it yet.
When idling the RPM was around 900 then at the ten minute mark the engine idle gradually rose to about 1100. No misfire at all and silky smooth.
I haven't performed this procedure since replacing the battery 12 months ago. This is my thought as a result. Whenever you disconnect the battery for whatever reason, after the re-connection perform this exact procedure. I basically connected the new battery started it and tool it for a ride up the road. If the ECU was in reset mode when I did that for the last twelve months I have been riding with a poor map setting hence that little misfire at idle and the rich exhaust scent in the garage in the morning.
I run BP 95 or 98 fuel only and the bike now has 135K on the clock. It is running like a new bike again. :runyay
Methinks I'll give this a go.
And report back in due course.
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Took the ST for a short run up to Garfield and breakfast, found it much more responsive and smoother, idles steady at just below 1000 rpm. Best indicated mileage at 100kph on the freeway was 25.6 kms per litre. Average mileage started at 14 now showing 18.9km/l and climbing. Very happy with outcome, thanks again Lonerider for finding this. Will get a clearer picture of mileage once I have done couple of tanks and do a km/l calculation, used to get around 20km/l with pillion and fully loaded.
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Picture of blocked 5 way connector and throttle bodies. Pic shows blocked pipe which goes to cyl 3 and 4. Incidentally spark plugs 3 and 4 were fouled.
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Early days for my report but after a 230km test ride, my :blu13 returned 20.1 km per ltr and it certainly is smoother and pulls harder and more readily lower in the rev range. As previously stated, mine has returned 18 km per ltr for the past 9 years so I'm impressed so far. I was initially skeptical as I thought "What could following the aforementioned process do?".
I only had my battery disconnected for about 1 1/2 hours and the fan cut in at about 13 minutes. Will be a regular process after every battery change at least.
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Last week I did the ECU Reset on my ST1300 with 155,000km on it, before a 600km round trip to the Riverland. The reset went smoothly with no problems, and I report that I can't really notice any difference in idle, overall smoothness or power. There may be a 0.25 l/100km improvement in fuel consumption, which is too little to be able to firmly attribute to the reset, and could easily be right hand, weather, speed, road conditions, or how I was holding my tongue.
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:rd13 :rd13 :rd13
Hi Chaps,
passed this on to my mate who has a 2004 model with ECU light (knock sensor problems).
Whilst it did not rectify the light coming on his bike is now running much better, more power and smoother and giving much more MPG.
He is happy with the result.
Rally Norm
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I have done this several times with good results. Basically every service I do or anytime I disconnect the battery I perform the reset procedure.
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About mid January I posted that my ST13 was playing up:
"Over the last few months since our Wooli AGM, the motor on my ST13 turns itself off when I come to a stop or slow down, then will come alive with a twist of the throttle. It's like someone has clicked the kill switch then turned it on again.
Other times trying to start it has resulted in surging between 1000-3000 revs and if I advance the throttle the surging still stays within that 2000 rev range.
I've had it in the workshop on several occasions, with one possible fix being to replace the battery, (which it needed in any case).
For a few weeks it behaved well, then went back to it's old cranky self.
The last time I left it there over a couple of weeks, for my mech to ride it himself and see if it would play up on him - which it did!
He thought it was the side stand switch, which when disconnected, seemed to fix it completely....for a couple of weeks.
I've since replaced the switch with a new one from Brisbane Motorcycles (https://brisbanemotorcycles.com.au) for $49. Good people to deal with and with very quick service. Two days delivered post free :thumb
One thing I've found is if I turn off the ignition, wait a couple of seconds, then turn it back on, it's good for the rest of the day.
Weird!"
StinkyPete suggested an ECU reset from this post, which I did yesterday and gave the bike a good run this morning (it was up around 41 degrees yesterday), and found pickup has improved, performance is a bit like a sports bike, gear changes are no longer jerky and now much smoother.
Such a simple procedure with such surprising results.
Thanks Lonerider :thumb
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...... Methinks I'll give this a go.
And report back in due course.
The latest post from JuST Peter prompted to go back through this thread, and then I realised that I had not reported on my outcome of the ECU reset.
I guess it must be 14 months since the reset, but I recall that the ST1300 ran much smoother, easier to ride (at low speeds and particularly through tight twisty corners) no throttle snatching or jerking.
I've had cause to disconnect to battery two or three times over the 14 months and have noticed that each time the snatching and jerkiness has returned. I didn't do the reset after the last battery disconnect. This was because I was at Wooli, and it didn't think it would be too friendly to have the ST1300 at a fast idle at the rear of a couple of our colleagues' cabin at 7.00am on the Sunday morning. Perhaps I should've said, "Stuff 'em", and had a more enjoyable ride home.
Anyway, bike is currently sitting in the garage, battery disconnected, ready for a reset. I'll post an update ....... in around 14 months.
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...... Methinks I'll give this a go.
And report back in due course.
The latest post from JuST Peter prompted to go back through this thread, and then I realised that I had not reported on my outcome of the ECU reset.
I guess it must be 14 months since the reset, but I recall that the ST1300 ran much smoother, easier to ride (at low speeds and particularly through tight twisty corners) no throttle snatching or jerking.
I've had cause to disconnect to battery two or three times over the 14 months and have noticed that each time the snatching and jerkiness has returned. I didn't do the reset after the last battery disconnect. This was because I was at Wooli, and it didn't think it would be too friendly to have the ST1300 at a fast idle at the rear of a couple of our colleagues' cabin at 7.00am on the Sunday morning. Perhaps I should've said, "Stuff 'em", and had a more enjoyable ride home.
Anyway, bike is currently sitting in the garage, battery disconnected, ready for a reset. I'll post an update ....... in around 14 months.
:rofl :rofl
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Anyway, bike is currently sitting in the garage, battery disconnected, ready for a reset. I'll post an update ....... in around 14 months.
Waiting, waiting... :whistle
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Still waiting... :whistle
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I will check back in 18 months for an update.. :Cake2