I have 650cc injectors and 100% ethanol, I am unable to adjust the KRKTE and TVUB, for ECU 06A906032HR 0261207443? What would be the correct values?
Is there a table? I tried to leave KRKTE 0.0525 and TVUB Stock but the car turns off, lean mixture at idle

injector 0280156453
Flow rate: 65 lbs/hr or 682cc/min @ 43.51psi (3 bar).

You are wasting your time replying. Look at the profile, it's a spambot that takes random topics and re-posts them.

I read the S4wiki, but it was missing an example, I used the calculation
my KRKTE is 0.10311 and I used the formula.
Bosch 65lbs/h = 682cc/min

16bit (LoHi)
Factor (0.000111111111)

34.125 / 682cc = 0.05003

but I didn't quite understand the TVUB part, how it is and how it represents the values ​​and just by changing the KRKTE the car starts to idle badly, it turns on the lean mixture and turns it off, it doesn't keep idle.

KRKTE is the constant that convert your fuel mass into effective injection time

You can refer to the following to calculate it: http://nefariousmotorsports.com/forum/index.php?topic=4021.msg151735#msg151735

Keep in mind, the injector is rated for 682cc at 3bar. If you are using a different fuel pressure, it will increase the flow rate of your injectors, you can use the following to make the conversion: https://deatschwerks.com/pages/fuel-injector-calculator

TVUB is the injector dead time based on voltage, it is the required time for the solenoid to open and start flowing fuel (This is also affected by the fuel pressure you are running and the injector characteristic)


Find the injector dead time for your injectors, calculate KRKTE. If you have proper TVUB, adjust KRKTE to be closer to lambda (engine needs to be at operating temperature)

Once you sorted out the idle, adjust FKKVS to fix areas where the injector is not linear to have better fuel control

With pure ethanol, you might want to play with the torque reserve for idle (KFMRES...), this will give you more control on ignition advance at idle and yield in a smoother idle with high ethanol content. I also suggest disabling long term fuel trim while you are scaling your injectors (see NOLRA)

I adjusted the TVUB according to the injector DataSheet.
I understand that the values ​​are provided by the manufacturer
The nozzles for the project are great, non-stock car
100% forged engine
12bar pump
3Bar stock regulator
65lbs/h injector
100% ethanol
k16 turbine

tiptronic swap for DSG DQ250

Wow, perfect explanation, I believe that now I can start tuning and test, I will look at the calculator

thank you very much!!
when I test it, I will report back with the results, this may help someone in the future with more information