How to get rid of a constantly running fan (DDFI-3)

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gunter
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How to get rid of a constantly running fan (DDFI-3)

Postby gunter » Sat Jun 23, 2012 6:02 pm

The latest firmware installed to DDFI-3 ECM types (BUE2D...) will make the fan run constantly if speed hits a certain threshold (15 mph or so).

If you want to go back to the "old" style of fan operation, you can do so by clearing bit 5 in the Fan Configuration byte. This can be done in TunerPro (see screenshot below) or by subtracting 32 (decimal) from the current value in the EEPROM window of EcmSpy (at offset 03C9 for BUE2D). If the current value is less than 32 (decimal), then this "feature" is disabled already.

If you want to keep the new style of fan operation, please note: the stock temperature thresholds seem more than just questionable to me, it's up to you to find out some reasonable temperature limits and change the tables accordingly.

This picture shows the stock setup in TunerPro:
Image

(You will most probably have to download the latest bin-Definitions from your personal download area at ecmspy.com to make these tables show up in TunerPro.)
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pash
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Re: How to get rid of a constantly running fan (DDFI-3)

Postby pash » Sat Jun 23, 2012 6:56 pm

Nice work...
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Nutah
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Re: How to get rid of a constantly running fan (DDFI-3)

Postby Nutah » Sat Jun 23, 2012 8:45 pm

:yt: :yup: Gunter 8-)
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spartan117
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Re: How to get rid of a constantly running fan (DDFI-3)

Postby spartan117 » Sat Jun 23, 2012 9:51 pm

I do'nt even play with my ECM thingy but I still find Gunter's post's interesting and informative. :yup:

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gunter
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Re: How to get rid of a constantly running fan (DDFI-3)

Postby gunter » Sat Jun 23, 2012 10:25 pm

A small teaser ;)

Image
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pash
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Re: How to get rid of a constantly running fan (DDFI-3)

Postby pash » Sat Jun 23, 2012 10:35 pm

New MonoSpy feature then...
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battyone
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Re: How to get rid of a constantly running fan (DDFI-3)

Postby battyone » Tue Jul 24, 2012 11:09 am

There are some strange things going on temperature wise on the the 1125s but it may be down to misquotes of certain temps.

In the workshop manual it states 83c as thermostat opening in the early specs,later in the same manual is says 73c ???

Also heard that the fans are set to run at speed due to them being a restriction to air flow. But don't know if there's any truth in that.

I'm still using a zd,but if we ever have time at the race track I'd like to put my current maps into my 2d and see if there is any difference.

there are obvious differences between the 2, one I noticed is temp corrections. the zd pulls timing at wot,but I've been unable to see it in logs.Maybe log still shows set timing not actual.
If it is pulling timing then it will be hurting my power. :(
Nige...1125d 9.43@140mph

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Mr whoosh 1125
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Re: How to get rid of a constantly running fan (DDFI-3)

Postby Mr whoosh 1125 » Mon Aug 13, 2012 8:35 am

Just popped in to say thanks Gunter, Nigel was kind enough to re-map my 1125R with your software at the Bulldog Bash this weekend, great work mate, its really made a lot of difference, thanks for all the time it must of taken you to put it together!
Ran 11.2 quarter mile totally standard and 10.9 following the tweak, K&N and other bolt-ins needed I think!!

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ericry
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Re: How to get rid of a constantly running fan (DDFI-3)

Postby ericry » Mon Aug 20, 2012 6:22 pm

Have a 2009 Buell XB12XT....its got the latest Buell/Harley mapping....the one which has the fan running all the time...............Iwant to go back to the quirky one where the fan would run for a while after you switched off the bike !!

However I have a TWIN/Fuel Solutions Nl custom fuel mapping (remotely loaded) on my bike - got this after I fitted a K&N air filter (stock exhaust).

Would this make it hard, impossible or dangerous to try tweak it to get the "quirky" running fan setup again ?????

Eric.
'09 XB12XT
'02 Beta Alp 200
'82 + '83 CX500 euroSports's
'83 CX650 Custom
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Re: How to get rid of a constantly running fan (DDFI-3)

Postby pash » Mon Aug 20, 2012 6:36 pm

No
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mundoxan
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Re: How to get rid of a constantly running fan (DDFI-3)

Postby mundoxan » Wed Sep 19, 2012 8:27 pm

Hello,

I friend with an Uly is trying to do the opposite, so having the "comfort kit" running for the fan. The problem is that he has a BUEZD ECM and is having problems to upgrade it to a BUE2D at the HD dealer.

Do you know if this feature is implemented in the BUEZD ECM? and if it is, do you know which bite should control this?

thanks for your help :yup:

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gunter
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Re: How to get rid of a constantly running fan (DDFI-3)

Postby gunter » Wed Sep 19, 2012 8:56 pm

From what I know only BUE1D and BUE2D have this feature implemented.
Easiest way to get it, is to upgrade to BUE2D at a H-D shop.
"It is often said that before you die your life passes before your eyes. It is in fact true. It's called living."
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mundoxan
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Re: How to get rid of a constantly running fan (DDFI-3)

Postby mundoxan » Wed Sep 19, 2012 9:13 pm

gunter wrote:From what I know only BUE1D and BUE2D have this feature implemented.
Easiest way to get it, is to upgrade to BUE2D at a H-D shop.


Thanks a lot Gunter! we're trying to avoid H-D, but... thanks again :yup:

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gunter
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Re: How to get rid of a constantly running fan (DDFI-3)

Postby gunter » Wed Sep 19, 2012 9:18 pm

upgrading the firmware is one of those pretty rare things, where even them can't screw something up.
"It is often said that before you die your life passes before your eyes. It is in fact true. It's called living."
Terry Pratchett

Clepsydra

Re: How to get rid of a constantly running fan (DDFI-3)

Postby Clepsydra » Mon Apr 15, 2013 12:39 pm

"by subtracting 32 (decimal) from the current value in the EEPROM window of EcmSpy (at offset 03C9 for BUE2D). If the current value is less than 32 (decimal), then this "feature" is disabled already."

I'm about to attempt this but having difficulty understanding what **** the above means. Any chance of screenshots or more detailed help... Cheers in advance..


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