Help! LTFT at -14 on TSP1 with K&N Intake

[Burgerstandman]

Can you give me an example on where to start?

Ok so scroll right until you see positive g/s numbers.

This is where you need to reference your fuel trim graph.

Have both screens up at the same time and go through each g/s number.

If it’s negative 8 on the graph then adjust the table by putting -8 in the “adjust by percent Box” I described above.

Go through it 1 through 30.

Don’t over think it and if your nervous about it just make a small change first then data log and you can see for yourself the change you made next time and adjust accordingly

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[Alex_hockey69]

Ok so scroll right until you see positive g/s numbers.

This is where you need to reference your fuel trim graph.

Have both screens up at the same time and go through each g/s number.

If it’s negative 8 on the graph then adjust the table by putting -8 in the “adjust by percent Box” I described above.

Go through it 1 through 30.

Don’t over think it and if your nervous about it just make a small change first then data log and you can see for yourself the change you made next time and adjust accordingly

I understand a lot more now. I just don't understand how to read the graph and which box would be 1g/s? I just need an example and then from there I'm sure I could figure it out

 

[PowerPerLiter]

I understand a lot more now. I just don't understand how to read the graph and which box would be 1g/s? I just need an example and then from there I'm sure I could figure it out

Based on another post I think was yours the graph had the wrong y axis value selected. should be "afm hz" or even just "afm" works. That would make it to where the bottom numbers of the graph are in g/s. Line up where the little red dots are grouped and change those values by however much is needed trim wise.

Should look similar to this if using hondata.

As an example I would select 2600hz through 3000hz on the afm flow table and add +2% based on this example. Then I would select 5000hz through 6500hz and reduce by -1%. Upload and re datalog.

 

[Neddih]

I messaged Ktuner and D-Rob asking if there is any way to allow corrections to MAF scaling in the TSP stage 1 tune like a partial unlock or something. Fingers crossed for us ktuner people, would be nice to be able to correct the numbers lol

 

[Alex_hockey69]

Based on another post I think was yours the graph had the wrong y axis value selected. should be "afm hz" or even just "afm" works. That would make it to where the bottom numbers of the graph are in g/s. Line up where the little red dots are grouped and change those values by however much is needed trim wise.

Should look similar to this if using hondata.

As an example I would select 2600hz through 3000hz on the afm flow table and add +2% based on this example. Upload and re datalog.

Here is the graph in AFM I see the G/S at the bottom. When I look at the afm flow table on the bottom for the G/S which box would be for 1g/s .. 2g/s... 3g/s

 

[PowerPerLiter]

Here is the graph in AFM I see the G/S at the bottom. When I look at the afm flow table on the bottom for the G/S which box would be for 1g/s .. 2g/s... 3g/s

dont zoom in so far. get the entire plot in view.

 

[PowerPerLiter]

from what I can see highlight 1.09 g/s cell through 11.5 ish g/s and reduce by -5% in the afm table to start.

 

[Alex_hockey69]

dont zoom in so far. get the entire plot in view.

dont zoom in so far. get the entire plot in view.

I was talking about the afm flow table which box would be 1g/s...or 2g/s

 

[PowerPerLiter]

Look at the numbers in the afm table pic you posted. See 1.09? Those are the g/s numbers.

 

[DyM]

I've been on the TSP Stage 1 tune for about 2 months now, with not much to complain about aside from the increased fuel/throttle cutoff becoming a bit of a nuisance in daily traffic. I upgraded from one of K-Tuner's OTS tunes after I read that, so long as trims were within 15% of zero, it's fine. However, I do have PRL's race MAF housing, which I know is trickier. I'm starting to question that original premise of the 15% comfort zone. I'm switching back to K-Tuner's 23PSI tune until such time that I can get a proper custom dyno tune. I recall the K-Tuner tune had much better fuel trims after a few days of driving (within 5% vs the 15% from TSP) and imho 23PSI is not noticeably different from 25PSI anyway on a sensibly spirited drive vs a track day. Gonna see how it goes in the next few days and see if I can notice any changes, but seems like the only way to really ensure ideal trims is to have the car tuned by someone who knows what they're doing, and is using proper tech. Just wanna grab that PRL DP first, so that I don't have to come back for a re-tune.

 

[Alex_hockey69]

Look at the numbers in the afm table pic you posted. See 1.09? Those are the g/s numbers.

After doing what you said my LTFT went down to -6 from -12 happy about that

 

[Burgerstandman]

After doing what you said my LTFT went down to -6 from -12 happy about that

I’m impressed, your graph looks even smoother than mine! That’s great man!! How long did you datalog for? I’d like to try and get mine nice and smooth like that.

 

[PowerPerLiter]

After doing what you said my LTFT went down to -6 from -12 happy about that

Good now do what you did but another -5% and try it

edit: maybe try -3% first

 

[Alex_hockey69]

I’m impressed, your graph looks even smoother than mine! That’s great man!! How long did you datalog for? I’d like to try and get mine nice and smooth like that.

about 25 mins but it was driving mostly in traffic which is where iv seem my LTFT the highest -12
I still dont understand 100% how to read the graph

 

[Alex_hockey69]

Good now do what you did but another -5% and try it

edit: maybe try -3% first