Best Base Map Calib. for New Intake Takeda

[Emount91]

Adjusting if pretty straight forward, highlight the range, right click and click adjust, input -5 on the first cell. it should adjust it automatically by -5%

Here is the datalog with the -%5 adj to 1.5-2.0v

5perADJCity.fpdl

Here is the current calibration:

6PSI Update 08 19 19.fpcal

And here is the ShortTermFT Table:

5perADJCitystft.jpg

And the LongTermFT Table:

5perADJCityltft.jpg

Looks MUCH better, but thinking I should go another -%5 in the same range? Or is that too extreme and I should do more like -3-2%.

I will say the car definitely felt a little different, smoother acceleration for sure.

[Emount91]

Made -3% adjustments to the same range last night, and took a very long datalog this morning of most of my ride to work.



Here is the ShortTermFT graph:

3perADJSpectrum.jpg

Here is LongTermFT graph:

3perADJSpectrumLTFT.jpg

Just made a few more minor adjustments:
From 1.1V to 1.2V I adjusted another -5%
From 1.2V to 1.3V I adjusted another -3%
From 1.6V to 1.7V I adjusted 3%

Hoping this will make my 0.0V to 2.0V very linear right around 0%

Looks like the top end (2.4V - 3.5V) needs to be a tad richer, but I will work on that end once I get the low end flattened out.

Now that being said, is there any other parameter/sensor I should be watching now that I am messing with the AFM? Does AFM indirectly affect something else in the ECU that I should monitor?

[Emount91]

After those adjustments, low end is pretty flattened out, top end still needs to be richened up a bit but I want to get a longer datalog of these last adjustments I made, so I'll do another one on my 1 hour ride home. Thinking that mean line will flatten out a little more the more data I have.

3perADJSpectrumSTFT1.jpg

Here is the current calibration that gave those AFMs

6PSI Update 08 19 19.fpcal

[Emount91]

A few more lunch break tweaks and logging:

Latest ShortTermFuelTrim Graph:

3perADJSpectrumSTFT2.jpg

Adjustments since last graph:
b/w 0.9 and 1.1 adjusted -3%
b/w 1.9 and 2.1 adjusted 2% the other way.

Will do an hour long datalog on my way home from work today and see what else needs tweaking. Im afraid that smaller datalogs are being swayed by 1ms outliers.

[NikkoPH]

Wow, i like how you progress.
I would leave it as it is, but it's really great feeling calibrating your own car.

What car are you driving? I am still wondering why you can calibrate using AFM.v
I have a 17 Civic Si and all i can pull up from the graph is when i use AFM
It looks much easier when you are calibrating using your method.

[Emount91]

Wow, i like how you progress.
I would leave it as it is, but it's really great feeling calibrating your own car.

What car are you driving? I am still wondering why you can calibrate using AFM.v
I have a 17 Civic Si and all i can pull up from the graph is when i use AFM
It looks much easier when you are calibrating using your method.

Thanks, man! Figured other curious people would like to see the progress and how much the trim changes with tiny little tweaks. Also, if that is how the canned 6+PSI tune from Hondata is running out of the box on my stock car, other people may want to check up on the health of their AFMs if they only installed the preloaded tune.

Nonetheless thank you so much for helping me learn how to do this, im excited for the new intake and almost hoping I have to do some more adjusting for it. This is fun.

Driving a 2017 Civic Hatchback Sport, I'm wondering if the AFMs are measured differently on the SI since the intake tube is bigger and different?

Also, you don't think I should add some fuel back in the 2.2V-4.0V range? Looks almost as off as my lower end was but in the opposite direction. Would that give me a tad more power in the top end of throttling or just a cleaner burn?

[Emount91]

Here is my full (almost 1 hour, 90% highway, 10% city) trim graph after all adjustments made so far:

FULLCOMMUTEstft.jpg

Definintely need to add some fuel in the upper end, lower end probably still needs some tweaking but its eons better than it was when I started.

[NikkoPH]

I would probably smooth it out.

This base maps have calibrations for stock air intake.
My intake is worst than what i thought, i am considering putting my stock airbox back,

[Emount91]

I would probably smooth it out.

This base maps have calibrations for stock air intake.
My intake is worst than what i thought, i am considering putting my stock airbox back,

Yeah all i have is the stock airbox right now with a k+n drop in, that’s why I was surprised how all over the place it originally was.

I smoothed some areas out and added fuel to the top end, data logging a few drives to see where it got me.

[gtfrede07]

Once you get to this stage you can keep being more and more meticulous on the "peaky" areas. Couple suggestions to make life easier. Make sure when you pull the data the car is COMPLETELY WARM. Heat soak affects everything too. Outside temps near 75 are ideal. Major temp ambient temp swings definitely will affect results too.

Flash it. Let it learn in. few drive cycles. long data logs which you are already doing. Adjust a range. Rinse. Repeat.

Keep doing what your doing...

[Emount91]

Once you get to this stage you can keep being more and more meticulous on the "peaky" areas. Couple suggestions to make life easier. Make sure when you pull the data the car is COMPLETELY WARM. Heat soak affects everything too. Outside temps near 75 are ideal. Major temp ambient temp swings definitely will affect results too.

Flash it. Let it learn in. few drive cycles. long data logs which you are already doing. Adjust a range. Rinse. Repeat.

Keep doing what your doing...

-Do you think my 1 hour long commute on the highway is causing a bunch of heatsoak that are skewing numbers?
-And should I be driving it with the new adjustments a few times before datalogging again? I have been adjusting at work, uploading it to the ECU, and datalogging on my commute home, looking at the graphs, adjusting at home, uploading to ECU at home, then driving to work in the morning and datalogging. Too frequent?

I really appreciate the advice! it's actually pretty fun trying to figure all of this out, and all the help I can get is only making this much easier.

Another quick question: If i'm running a little lean or rich while I am trying to datalog and fine tune and adjust, I'm not going to add any risk of damaging my engine, correct? From what I understand, fuel trims are the ECU correcting the amount of fuel to match the target AFRs. So the cars are technically not running lean or rich, they just need adjusting so the fuel trim process isn't always working non-stop. Is that correct or am I misunderstanding that?

[NikkoPH]

-And should I be driving it with the new adjustments a few times before datalogging again? I have been adjusting at work, uploading it to the ECU, and datalogging on my commute home, looking at the graphs, adjusting at home, uploading to ECU at home, then driving to work in the morning and datalogging. Too frequent?

This is what i am doing for 5 working days.

[Emount91]

-And should I be driving it with the new adjustments a few times before datalogging again? I have been adjusting at work, uploading it to the ECU, and datalogging on my commute home, looking at the graphs, adjusting at home, uploading to ECU at home, then driving to work in the morning and datalogging. Too frequent?

This is what i am doing for 5 working days.

yeah basically I am datalogging twice a day and adjusting twice a day, i'm thinking that may be too frequent?

[gtfrede07]

My initial setups are just as yall are doing. Once I feel I am close I will maybe do it once a week. Once I think its perfect Ill make a change once a month maybe. It always proves to me it cant be "perfect" lol. But I try to get it as close as possible. My last upload has taken about 2 months of daily use to get to -5% long term. I may end up leaving it the way it is to allow for colder ambient temps to hit that are coming to midwest soon. As this will make the trims start to go more positive or closer to zero.

As far as the rich lean and damaging question....as long as your changes arent overly dramatic the car will more or less take care of itself via fuel trims.

[gtfrede07]

Basically the longer you drive on a flash the more sample data the ecu acquires and the more "overall changes" will be in your recorded data. Multiple days with different humidity and temperatures etc basically lets the computer learn your settings and you can then react to its reactions. If that makes any sense.