Running rich at WOT, how to adjust AFR?

[kytos]

Does it affect only logs in the future or any logs that I took in the past?

It only does affect the actual reading of the log. You have to set it every time you want to read the logs. This is just to adjust translation from lambda to AFR when reading (to do that you need to set your stoichiometric point that changes with the fuel type), it doesn't affect logs.

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[Prozento]

Try decreasing the maf voltages air flows at wot from 3.8 to 4.5 %5 at first if it helps you can try decrasing even further

I actually took it a little further and adjusted all the MAF table.
My LTFT is steady on 0% +-2%. I will try to adjust the top end like you said a little more (2% for now) since the AFR still not in the are where I want it to be.

Now the AFR looks like that:
The moment that the Actually boost graph crosses the Boost target, I go down to like 8.7-9.7 AFR, just for 1 moment.
Then the AFR climb up to 9.8-10.5. and stays an average of 10.4-10.3.

I think adding just another 2% to the top end will make it perfect.

 

[NewCivicRs]

11.2-11.5 is a nice sweet spot for nice power and rich enough to keep the combustion chamber cool. Lower than 11 you will be missing a few wild horses and higher than 11.7 will get you closer to the $h1t happens zone

Hi, 11.2-11.5 is the AFR or AFR CMD ?
My AFR CMD is 11, but my AFR is 9.83 during WOT, shit.

 

[highroller]

Hi, 11.2-11.5 is the AFR or AFR CMD ?
My AFR CMD is 11, but my AFR is 9.83 during WOT, shit.

that is coz on wot certain ECUs do not seek AFR CMD (commanded) therefore go rich with correction.
In order to achieve correction we have to manually pull out fuel from the tables on different range of RPMs to achieve desied AFRs.

 

[NewCivicRs]

that is coz on wot certain ECUs do not seek AFR CMD (commanded) therefore go rich with correction.
In order to achieve correction we have to manually pull out fuel from the tables on different range of RPMs to achieve desied AFRs.

Is it too rich or just slight rich? If I leave it alone, what is the downside?

 

[highroller]

Is it too rich or just slight rich? If I leave it alone, what is the downside?

Around 10 is okaish..
Around 11 is optimal but also depends on fuel quality
In Siz and built engine ppl go quite lean.

 

[NewCivicRs]

Around 10 is okaish..
Around 11 is optimal but also depends on fuel quality
In Siz and built engine ppl go quite lean.

10-11? Sorry, do you mean the AFR or AFR CMD ?

During WOT the AFR is about 9,83 and AFR CMD 11.

 

[NewCivicRs]

What I see is, the car is saving fuel on Econ Mode.
But the car is burning quite a lot of fuel on Sport Mode.

 

[highroller]

10-11? Sorry, do you mean the AFR or AFR CMD ?

During WOT the AFR is about 9,83 and AFR CMD 11.

I meant AFR.

9.8 is neither bad nor good. Downside is you are loosing a tad bit of power

 

[highroller]

What I see is, the car is saving fuel on Econ Mode.
But the car is burning quite a lot of fuel on Sport Mode.

On wot, econ on or off, you will have similar AFRs

 

[NewCivicRs]

I meant AFR.

9.8 is neither bad nor good. Downside is you are loosing a tad bit of power

Thanks for helping.
Will it be harmful to the engine?
This is L15B7 Non Si, and everything is stock.
I feel the power is really good during WOT on sport mode, but fuel is burning a lot. When I put it back to econ mode, it starts to save fuel again.

 

[varge]

Bellow 10.5 is quite rich for wot, and not optimal for a DI engine. 10.8-11.2 is excellent for reliability and long term engine health.
10 is bad for me.

 

[NewCivicRs]

Bellow 10.5 is quite rich for wot, and not optimal for a DI engine. 10.8-11.2 is excellent for reliability and long term engine health.
10 is bad for me.

So mine is dangerous for long term?
I will go back to my tuner.

 

[highroller]

So mine is dangerous for long term?
I will go back to my tuner.

Higher than 12 is dangerous.
Lower is not dangerous only thing is u are loosing power that you can juice

 

[NewCivicRs]

Higher than 12 is dangerous.
Lower is not dangerous only thing is u are loosing power that you can juice

I see, if my tuner re-adjust it from 9,8 to 10,8, it will be more powerful and save fuel?

But if I leave it alone, the downside is inefficient fuel usage ONLY?

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