help with fuel trim levels

[mheidemanjr]

Need help figureing out why my fuel trims will not move from -12.5 . I have tryed raising global and lowering it, I have allso tryed moving the air flow on the 50 hz slider up and to with no efect any ideas?

 

[Hesh724]

If your referring to combinedFT then if i understand it correctly. ecm tuning said that combft is supposed to be very low i think that means it is correcting for something if its high. check your maf comp and lower some stuff and see if it does anything. very little change to maf comp doesnt hurt anything as far as i can tell on ecmlink V3.

 

[mheidemanjr]

No I am logging selected ltft mid and low. Ltft . I have tryed doing every thing as per the documents that came with the link

 

[dceptn]

Post a log. Raising deadtime will lower CombindedFT.

 

[mheidemanjr]

Post a log. Raising deadtime will lower CombindedFT.

I will post a log tommrow when I have acces to computer I do my dsm via droid .. I didhow ever mange to get them up now I gotta work on getting them even threw cruise and idel. Any one have an idea of why when I do a 3rd gear pull and try to go back its saying I only took the rpms to 5500ish when I in fact pulled from 2k-7250?

 

[gyd23]

what became of this issue? because i am having the exact same thing... LTFT lo and mid are not moving from 12.5% i tried adjusting global and deadtime as well as MAF comp and none of those worked. Also sometimes my fuel trim malfunction DTC will get thrown.
anyone have any ideas?

 

[red92tsi]

There are lots of tutorials online for setting your fuel trims on dsmlink. Ive been using link for about 2 weeks now and its pretty easy if you just read or watch the tutorials.

 

[Absit]

No I am logging selected ltft mid and low. Ltft . I have tryed doing every thing as per the documents that came with the link

How long did you drive with your new fuel settings before checking your LTFTs?