ECMlink Fuel trim issue

[enriquez2000]

I was going through a guide over in ecm forums and trying to tune trims by using stft and ltft lo.

I let car warm up to 200 and started playing with global and dead times to get each to 0 instead of going by combinedft.

Problem i ran into is my ltft lo stays steady at 8.6 no matter my changes. The stft will change accordingly.

Any ideas as to what may be going on?

 

[Archer Fabrications]

Reset fuel trims in the drop down menu see if that resets it.

 

[edged1g]

I was going through a guide over in ecm forums and trying to tune trims by using stft and ltft lo.

I let car warm up to 200 and started playing with global and dead times to get each to 0 instead of going by combinedft.

Problem i ran into is my ltft lo stays steady at 8.6 no matter my changes. The stft will change accordingly.

Any ideas as to what may be going on?

You have to be in learn mode for long term trims to be updated. Here is the learn mode parameters.
Verify you are in learn mode. Then, as urban said, click ECU>Reset Fuel trims, and check the new values that are learned.

 

[enriquez2000]

I was able to get them close. To 0 on both.. they oscilate by plus or minus 1.5 but were way off from each other before but still giving a good combined. Like article says if one is plus 5 and other minus 5 combined is 0 so i wanted to check mine and they were off of course.

Now after adjusting my mafcomp needs tweaking again as im running richer than i was on wb compared to afrest.

Oh the joy....