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Title: Need definition file for 8D0907557 0261203550/551 software 355966 Post by: Lauria112 on May 18, 2014, 11:04:27 PM Hi,
I have A4 1.8T AEB 1996 and I have been looking for definition files for tuning it. I have been able to find tuned files also and cross referenced with the original, but this has lead into more questions. Going beyond stage 1 would be much easier with definition and possible swap to E85 including new injectors etc.. Any help with this somewhat rare ecu is appreciated. You guys are doing great job here. Attached is assumed original dump I found on internet. Title: Re: Need definition file for 8D0907557 0261203550/551 software 355966 Post by: neuro on May 19, 2014, 09:50:40 AM For bigger injector.. you need to look at
Grundanpassungskonstante (16 bit LoHi 1x1) var newinj :=440cc; oldinj :=241cc; Grundanpassungskonstante := 32895; newkonstante := (440cc * 32895 ) / ( 241cc) newkonstante := 60057; if you want to keep stock injector and run E86, you need 30% more fuel everywhere. so the calcul would be: stocksize - 30% * konstante / stock size; ( (241cc - 72,3) * 32895 ) / (241cc) Newkonstante := 23026; Hi, I have A4 1.8T AEB 1996 and I have been looking for definition files for tuning it. I have been able to find tuned files also and cross referenced with the original, but this has lead into more questions. Going beyond stage 1 would be much easier with definition and possible swap to E85 including new injectors etc.. Any help with this somewhat rare ecu is appreciated. You guys are doing great job here. Attached is assumed original dump I found on internet. Title: Re: Need definition file for 8D0907557 0261203550/551 software 355966 Post by: Lauria112 on May 19, 2014, 01:27:44 PM Thanks, I'll look for these when I get to my computer again.
As I'm located in Finland, I will have to look for cold enrichment also for E85, otherwise I could only dream of startups during winter. For bigger injector.. you need to look at Grundanpassungskonstante (16 bit LoHi 1x1) var newinj :=440cc; oldinj :=241cc; Grundanpassungskonstante := 32895; newkonstante := (440cc * 32895 ) / ( 241cc) newkonstante := 60057; if you want to keep stock injector and run E86, you need 30% more fuel everywhere. so the calcul would be: stocksize - 30% * konstante / stock size; ( (241cc - 72,3) * 32895 ) / (241cc) Newkonstante := 23026; Title: Re: Need definition file for 8D0907557 0261203550/551 software 355966 Post by: Rocky on June 26, 2014, 10:49:58 PM For bigger injector.. you need to look at Grundanpassungskonstante (16 bit LoHi 1x1) var newinj :=440cc; oldinj :=241cc; Grundanpassungskonstante := 32895; newkonstante := (440cc * 32895 ) / ( 241cc) newkonstante := 60057; if you want to keep stock injector and run E86, you need 30% more fuel everywhere. so the calcul would be: stocksize - 30% * konstante / stock size; ( (241cc - 72,3) * 32895 ) / (241cc) Newkonstante := 23026; that factors are for 557T file. In attached 557 there is no value "32895". Can u give me a hint to find out Grundanpassungskonstante for 557 attached above.? Title: Re: Need definition file for 8D0907557 0261203550/551 software 355966 Post by: Rocky on June 27, 2014, 07:18:34 AM for ecu 8D0907557T:
07720 - Grundanpassungskonstante for ecu 4B0907557B 07536 - Grundanpassungskonstante it's between "Startwert Luftmassendurchsatz" and "Ansauglufttemperatur max." Title: Re: Need definition file for 8D0907557 0261203550/551 software 355966 Post by: Lauria112 on July 08, 2014, 04:17:58 AM Ended with fried ECU last weekend :-[
I wish the best for those few who are still working on that ECU Title: Re: Need definition file for 8D0907557 0261203550/551 software 355966 Post by: vagenwerk on September 21, 2014, 04:28:53 PM AnyOne knows adress of Grundanpassungskonstante for 557 ecu ?
Title: Re: Need definition file for 8D0907557 0261203550/551 software 355966 Post by: TijnCU on September 23, 2014, 01:44:34 PM Ended with fried ECU last weekend :-[ What did you do wrong?Title: Re: Need definition file for 8D0907557 0261203550/551 software 355966 Post by: pavel.stoilov on July 20, 2019, 08:58:11 AM Sorry for bumping up this old thread, but did someone found Grundanpassungskonstante for this old ECU...
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