KFLBTS Problem with fueling

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Topic: KFLBTS Problem with fueling (Read 6555 times)

maZer.GTi

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	KFLBTS Problem with fueling « on: February 12, 2013, 07:18:07 AM »

I have problems to get right fueling with this map.
KFFDLBTS = 1
FBSTABGM = 1
TABGBTS = 399°C

i attached screenshot of my KFLBTS map,
i see with this setup requested lambda 0,78 on high load/rpm.
But my actual Lambda is < 0,75 and i cant get it higher.
I lowered FKKVS up to 0,89 but cant get it over lambda 0,74.
Under 4000rpm my actual lambda is very close to requested lambda, but over 4200rpm it goes crazy Sad

Does someone have the same Problem or can help me to get it working?

thanks for help


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phila_dot

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	Re: KFLBTS Problem with fueling « Reply #1 on: February 12, 2013, 07:30:47 AM »

If target lambda is good, then KFLBTS is not your problem.

So, lamsbg_w is good, but lamsoni_w is rich?

Why are you trying to fix it with FKKVS?

What is your setup? Injectors, MAF, turbo...stock or...?

Does your hardware allow you to run a stock file?


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maZer.GTi

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	Re: KFLBTS Problem with fueling « Reply #2 on: February 12, 2013, 08:16:26 AM »

Hello Phila,
no my hardware is changed a lot :/
550ml Injectors with 4 Bar FPR.
K04 with RS6 Wheel.
MAF Stock

Yes lamsbg_w is like i request in KFLBTS but lamsoni_w is to rich.
I think this ecu cant show richer mixtures then 0,75 ( it shows 0,75 )
greets
Andy


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prj

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	Re: KFLBTS Problem with fueling « Reply #3 on: February 12, 2013, 08:52:12 AM »

Pressure test and make sure you don't have boost leaks...
If you moved location of MAF sensor that can also cause a problem.

Otherwise your KRKTE is wrong or fuel pressure is too high on idle (bad FPR).
Start measuring physical things on the car, not playing with ECU Wink


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maZer.GTi

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	Re: KFLBTS Problem with fueling « Reply #4 on: February 12, 2013, 09:47:08 AM »

Lambda regulation is always near -10%.
Its only on wot and over 4k rpm.
krkte should be good trims are fine Sad


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nyet

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	Re: KFLBTS Problem with fueling « Reply #5 on: February 12, 2013, 10:35:02 AM »

2nd hardware problems. probably leak post maf, pre turbo.


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maZer.GTi

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	Re: KFLBTS Problem with fueling « Reply #6 on: February 12, 2013, 12:56:37 PM »

My Turbo is very damaged, he needs 1,5L oil on 500km.
Maybe Problem is that my wideband is showing me wrong values because my turbo burns much oil?
greets
andy


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nyet

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	Re: KFLBTS Problem with fueling « Reply #7 on: February 12, 2013, 12:59:50 PM »

could be.


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maZer.GTi

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	Re: KFLBTS Problem with fueling « Reply #8 on: February 12, 2013, 01:02:45 PM »

Big thx, i stop trying to get it leaner now


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ddillenger

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	Re: KFLBTS Problem with fueling « Reply #9 on: February 12, 2013, 01:18:00 PM »

We need a header at the top of the tuning forum:

DON'T ATTEMPT TO TUNE A CAR UNTIL YOU GET ALL THE HARDWARE SORTED!

And if you do, don't waste everyone's time with it.


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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!

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nyet

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	Re: KFLBTS Problem with fueling « Reply #10 on: February 12, 2013, 01:20:09 PM »

Quote from: maZer.GTi on February 12, 2013, 01:02:45 PM

Big thx, i stop trying to get it leaner now

Either way, pressure test AND fix your oil leak, then go back to tuning ...


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