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-   -   15 minute idle clarification.... (http://www.advrider.com/forums/showthread.php?t=487468)

Jnxdrcg 07-20-2009 12:58 PM

15 minute idle clarification....
 
I have looked everywhere for clarification on this point and cant seem to find an answer. Do you shut the bike off or just start riding it at the 15.5 minute mark?

Crisis management 07-20-2009 01:02 PM

My understanding is that you turn the bike off then restart and go play..if you don't shut it off between 15 minutes and 15minutes 40 seconds the ECU doesn't reset itself, it needs the actual shut off action to cause the reset.

This gem of internet wisdom is based upon researching these "facts" here, rather than any in depth knowledge of how the ECU works.

alphajory 07-20-2009 01:15 PM

you have to shut the bike off at 15 min 30 seconds of the reset. If i remember correctly it best done in cooler temps with the motor cold. Once done your good to go.

There are a lot of different treads on why and how it works but basically it has to do with the way the closed loop system that is on these bikes works.

dezracer 07-20-2009 03:06 PM

With all due respect this appears to be 'a guess". Not only the 15minute idle but whether or not to cycle the key. I have done the 15 minute idle, but proceeded to ride without cycling the key and yes it always "seems" to run smoother off idle.

I would feel better if the process was written somewhere, anywhere. With auto ECUs the procedure for re-setting always includes unhooking the battery for 10 minutes or so and starting with a clean slate so to speak. This makes sense to me so thats what I do, but again all this 15 minute idle thing is not written anywhere to my knowledge. If Im wrong then I will stand corrected.

Venteuri 07-20-2009 03:10 PM

From the bible:

Quote:

The 15 minute Idle Trick:
Superduke: It seems there's a little confusion about the so called “15 min idle trick”
If the dealer changed the mapping (maybe for a different exhaust ) he had also also to do the 15 min idle run. But we don’t want to change the mapping, we only want the EFI to “re calibrate. Because of the self learning EFI the “actual” parameters of the engine are measured and stored into the EFI as new basic information, if you do a 15 minute idle run.There is a good information about this in a document from KTM Sommer.
I will try to translate the most important things you have to do.
Preparation:
Enough gas in the tank !
Do it outside , not in a closed garage and somewhere in the shadow.
You need also a stop watch.
What to do:
The bike must be in a vertical position – so don’t use the side stand for the procedure.
The engine must be cold.
Start the engine and let it idle for 15 minutes.
You are not allowed to use any functions of the bike in this time.
The time must not be less then 15 minutes and not more then 16 minutes.
If the engine stops running during this time, just restart it and let it run for the rest of the time.

Venteuri 07-20-2009 03:22 PM

Quote:

Originally Posted by dezracer
With all due respect this appears to be 'a guess"....

I would feel better if the process was written somewhere, anywhere. With auto ECUs the procedure for re-setting always includes unhooking the battery for 10 minutes or so and starting with a clean slate so to speak. This makes sense to me so thats what I do, but again all this 15 minute idle thing is not written anywhere to my knowledge. If Im wrong then I will stand corrected.

Correct.
And the repair manual, says

http://iicwwq.bay.livefilestore.com/...t%20engine.JPG

roundtripping 07-20-2009 03:29 PM

Quote:

Originally Posted by Venturi
Correct.
And the repair manual, says

http://iicwwq.bay.livefilestore.com/...t%20engine.JPG

So it seems like someone read something about 15 mins idling in the repair manual, took that final step out of context and now people think a full reset can be done by just idling for 15 mins?

tobys 07-20-2009 04:05 PM

Wow
 
"not less than 15 minutes and not more than 16"...

Sounds pretty hard to believe, but I can't access the link from KTM.

It's odd that the computer (or whatever it is) would take all the readings, and be ready to re-map, and then say "oops, we hit 16 minutes, nevermind...".

anyway, no harm in trying, I'll go for it.

dezracer 07-20-2009 04:15 PM

Quote:

Originally Posted by jryden
So it seems like someone read something about 15 mins idling in the repair manual, took that final step out of context and now people think a full reset can be done by just idling for 15 mins?


If you are not hooked up to the KTM diagnostic tool thats the way I read it as well. Turning the key off as stated is maybe a saftey precautuion when you are hooking and unhooking the diagnostic tool????

Could this 15 minute idle thing be Orange Crush folk lore? God forbid us inmates would be lored in by an internet rumor. We are way to smart for that. LOL! Some of the stuff wriiten above seems like BS to me. Like making certain the bike is on the centerstand. What possible diffrence would that make with an EFI motor. I do agree with letting the motor warm to 3 bars though. That makes sense so I do it. (Is that even stated in the owners manual?)

I admit that the few times I have performed the 15 min idle it "seemed" smoother off idle, but then again depending on conditions the off idle abruptness seems to creep back in. I will say that with the mods listed in my sig I have basically eliminated that gremlin though.

Jnxdrcg 07-20-2009 04:40 PM

NOTE: the engine must run in idle for 15 minutes after each mapping
operation (Mapping initializing). Do not accelerate during this time,
observe the coolant temperature and abort if the engine threatens to
overheat.




I got this from the manual and yet despite all this information there is still no word on what you do after the 15 minutes are up....

ADVJake 07-20-2009 05:38 PM

So... is there a hacked version of the KTM diagnostic tool out yet? :D

MookieBlaylock 07-20-2009 05:51 PM

Quote:

Originally Posted by ADVJake
So... is there a hacked version of the KTM diagnostic tool out yet? :D

tuneboy software has a "reset adaptive settings" function

Mad Kaw Disease 07-20-2009 07:37 PM

Quote:

Originally Posted by dezracer
Could this 15 minute idle thing be Orange Crush folk lore? God forbid us inmates would be lored in by an internet rumor. We are way to smart for that. LOL! Some of the stuff wriiten above seems like BS to me...

You'd think that someone at KTM would care enough to read these major forums and debunk any glaring myths for us...but then that might shatter the mystique...

alphajory 07-20-2009 09:59 PM

With the 15 minute idle it's done not to change the mapping, its done to re calibrate the ECU. the ECU system self learns if i remember in the closed loop period of operation, the 15 minuite idle alows the ECU recalerbrate the “actual” parameters of your engine.

Pete156 07-20-2009 10:10 PM

Quote:

Originally Posted by alphajory
With the 15 minute idle it's done not to change the mapping, its done to re calibrate the ECU. the ECU system self learns if i remember in the closed loop period of operation, the 15 minuite idle alows the ECU recalerbrate the “actual” parameters of your engine.


So how long does this recalibration last? Sounds like some inmates are having to perform this 15 minute idle several times.

I won't buy a FI KTM until they get this kind of stuff sorted. How can the FI on the new Husabergs be so spot on and the 990s so not?


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