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LTFT question
Posted: Fri Sep 11, 2009 7:43 pm
by skolman91
ok adjusted my ltft's the other day, and today i go out for a ride to check to see what had changed. while riding today i noticed while crusing 60-65 at almost 2k rpm my ltfts change with throttle position. ex. anything below 23%ish throttle my trims are 4.xx, but go over or around 25% throttle and they are .78 (which is around where they should be after my last adjustment). i havent read anything on throttle percentages needing to be above a certain percent to get correct ltft's..??
I noticed this after taking it off cruise because the trims were 4.xx, and watching trims and TP% while messing with throttle..
RE: LTFT question
Posted: Fri Sep 11, 2009 8:04 pm
by 06MonteSS
you're fine...
you let off the gas so they changed... normal operation...
RE: LTFT question
Posted: Sat Sep 12, 2009 2:14 am
by skolman91
ok i re-read my post and it sounds a little different than what im tryin to say.
constant driving at Tp% of 23 or below= 4.xx ltft
constant driving at Tp% of 25 or above = .78 ltft
both on cruise on flat road
im sure i am fine just a little curious, last time i watched data i noticed it would change ltfts with throttle usage or coasting, but thats obvious like u said.
but like i said im just curious, ill prob go back out tom and see if this is really happening, or im crazy..
RE: LTFT question
Posted: Sat Sep 12, 2009 3:12 pm
by concoursd
how does it perform? Any better or worse from one log to the other?
RE: LTFT question
Posted: Sat Sep 12, 2009 5:57 pm
by skolman91
it doesnt perform any different while this is happening..
went out and watched again and sure enough at 25%TP the ltft's change from 4.xx and 5.xx to .78 and 0. @2100 ish rpm
must be ecu switching into saved ltft's?