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Long Term Fuel Trim...

Started by ChazzyB, July 25, 2011, 03:29:23 PM

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ChazzyB

July 25, 2011, 03:29:23 PM
... I was surprised to find mine had crept up to 5.3% when I hooked TuneECU up this morning. 2003 Tiger, K&N, TOR pipe, tune 10121.

I'm pretty damned sure it was 4.3% when I last looked. Seems to be running just fine, though a good blip when warm shows a puff of black smoke. Thoughts?
Charles
______________________
2008 Tiger 1050
2006 Aprilia Pegaso Strada
1972 BSA B25FS Fleetstar
1971 BSA A65L Lightning
1953 AJS 18S

KuzzinKenny

#1
July 27, 2011, 01:53:23 AM
Mine went the other way, i set it at 4.6 went for a run, checked the next day, 4.2  :icon_scratch

beats me but most things do  :?  :lol:

KK
In Scotland, there`s no such thing as bad weather - only the wrong clothes !! Billy Connolly
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Lucifer Orange 05 (2004) Purrrrrrfect !!

Danny955i

#2
July 27, 2011, 05:32:42 PM
Thoughts are you're not running your O2 sensor closed loop... lower every single fuel-trim on your AF maps below 14.5... 14.45 or 14.4 works fine.

Then, re-set your LTFT...

This will knock the O2 sensor out of the equation and only run the values you input, so it should never change.

Dan
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