Will KRKTE change on using E25 (25% ethanol)

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ABCD

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	Will KRKTE change on using E25 (25% ethanol) « on: February 19, 2014, 09:05:16 PM »

if i use E25 in place of gasoline, will the injector flow rate change leading to change in KRKTE?


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ddillenger

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	Re: Will KRKTE change on using E25 (25% ethanol) « Reply #1 on: February 19, 2014, 09:23:55 PM »

You might get a lean code from that, but likely not.


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overspeed

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	Re: Will KRKTE change on using E25 (25% ethanol) « Reply #2 on: February 20, 2014, 12:53:01 PM »

Here in Brazil our gasoline has 25%Etanol (ABCD are you from Brasil too ?) the original files are the same ROW and doesn´t throw DTC.


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ABCD

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	Re: Will KRKTE change on using E25 (25% ethanol) « Reply #3 on: February 20, 2014, 07:54:16 PM »

Quote from: overspeed on February 20, 2014, 12:53:01 PM

Here in Brazil our gasoline has 25%Etanol (ABCD are you from Brasil too ?) the original files are the same ROW and doesn´t throw DTC.

Ok.thanks for the info.
and i m from India.


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hammersword

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	Re: Will KRKTE change on using E25 (25% ethanol) « Reply #4 on: February 21, 2014, 06:17:14 PM »

if E25 has different stoich AFR than pure Petrol then you have to change KRKTE for sure!


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ABCD

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	Re: Will KRKTE change on using E25 (25% ethanol) « Reply #5 on: February 21, 2014, 07:49:23 PM »

Quote from: hammersword on February 21, 2014, 06:17:14 PM

if E25 has different stoich AFR than pure Petrol then you have to change KRKTE for sure!

yes yes...KRKTE will change
actually i wanted to ask whether injector flow rate (Qstat gm/min) will change
sorry for the slip


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overspeed

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	Re: Will KRKTE change on using E25 (25% ethanol) « Reply #6 on: February 22, 2014, 06:44:48 PM »

Quote from: hammersword on February 21, 2014, 06:17:14 PM

if E25 has different stoich AFR than pure Petrol then you have to change KRKTE for sure!

I agree, but here in Brazil it doens´t like would be Cheesy

As example, Golf MKIV has the same injectors and file than ROW... if you see channel 32 you´ll see about +8~10% in LTFT.

Same thing with Jetta 2.0 TFSI, about 10~12% LTFT

Just few cars have something to deal with this, for example A3 180 that use 512kB file and Audi solved using injectors 10% bigger than ROW but keep the file the same


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hammersword

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	Re: Will KRKTE change on using E25 (25% ethanol) « Reply #7 on: February 23, 2014, 06:41:34 PM »

for sure the ECU will adapt by at +8-10% as you said if you have KRKTE for Petrol and you put E25!
That is why they offer E85 without software change!


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jibberjive

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	Re: Will KRKTE change on using E25 (25% ethanol) « Reply #8 on: February 24, 2014, 03:35:57 AM »

I used to mix a couple of gallons of e85 with each tank fillup to get ~E30 in my A4 and S4. It was right around 25-30% that I would get the lean codes, just fyi.


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