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Title: M5.9.2 + K04 + S4 injectors, how to ? Post by: alme94 on June 25, 2020, 11:38:27 AM hi friends, these days i trying to build myself a tune for this car, its my own car and trying to learn a petrol possibility :)
setup is this: 110kw stock AEB - USA model - 557P - m5.9.2 ecu with am29f200 K04 turbo S4 injectors 349cc vr6 maf + housing 70mm petrol regulator 4bar pump in tank bosch 0580254040 - 6,5bar large intercooler from audi 2.5tdi make some edits and pulls, car sometimes run in high rpm okay but at low rpm is a problem, yerk happening about 3000 to high and etc.. i have stock narrowband, it says that in high rpm about 0.88v its too rich,think..on idle i have various AFR 1sec 0.15v, 1sec 0.6v, 1 sec 0.4 .. dont know what happening .. also on idle maf reading about 2.0 to 2.5g/s, on peak read about 140g/s.. i tried on stock maf, its reading on idle 2.8g/s on peak 175-180g/s and have dtc after run - signal too high ( for maf ) thank you in advance, i can pay its not a problem for some hint and better results, maybe im wrong in choosing map to edit, which map i should base for this setup ? thankssssss Title: Re: M5.9.2 + K04 + S4 injectors, how to ? Post by: _nameless on June 25, 2020, 02:17:08 PM hi friends, these days i trying to build myself a tune for this car, its my own car and trying to learn a petrol possibility :) setup is this: 110kw stock AEB - USA model - 557P - m5.9.2 ecu with am29f200 K04 turbo S4 injectors 349cc vr6 maf + housing 70mm petrol regulator 4bar pump in tank bosch 0580254040 - 6,5bar large intercooler from audi 2.5tdi make some edits and pulls, car sometimes run in high rpm okay but at low rpm is a problem, yerk happening about 3000 to high and etc.. i have stock narrowband, it says that in high rpm about 0.88v its too rich,think..on idle i have various AFR 1sec 0.15v, 1sec 0.6v, 1 sec 0.4 .. dont know what happening .. also on idle maf reading about 2.0 to 2.5g/s, on peak read about 140g/s.. i tried on stock maf, its reading on idle 2.8g/s on peak 175-180g/s and have dtc after run - signal too high ( for maf ) thank you in advance, i can pay its not a problem for some hint and better results, maybe im wrong in choosing map to edit, which map i should base for this setup ? thankssssss I start by gerting a wideband lambda gauge. Id calibrate larger maf first. Then calibrate injectors after Title: Re: M5.9.2 + K04 + S4 injectors, how to ? Post by: eliotroyano on June 25, 2020, 05:58:59 PM hi friends, these days i trying to build myself a tune for this car, its my own car and trying to learn a petrol possibility :) setup is this: 110kw stock AEB - USA model - 557P - m5.9.2 ecu with am29f200 K04 turbo S4 injectors 349cc vr6 maf + housing 70mm petrol regulator 4bar pump in tank bosch 0580254040 - 6,5bar large intercooler from audi 2.5tdi make some edits and pulls, car sometimes run in high rpm okay but at low rpm is a problem, yerk happening about 3000 to high and etc.. i have stock narrowband, it says that in high rpm about 0.88v its too rich,think..on idle i have various AFR 1sec 0.15v, 1sec 0.6v, 1 sec 0.4 .. dont know what happening .. also on idle maf reading about 2.0 to 2.5g/s, on peak read about 140g/s.. i tried on stock maf, its reading on idle 2.8g/s on peak 175-180g/s and have dtc after run - signal too high ( for maf ) thank you in advance, i can pay its not a problem for some hint and better results, maybe im wrong in choosing map to edit, which map i should base for this setup ? thankssssss Start with and OEM file tweaked for a VR6 MAF linearization vector and injectors/FPR latency values, minimum pulse and fuel injection constat to obtain proper load/MAF/Injection pulse values including STFT no more than -3% to +3% aprox and you will have a nice start with car from idle and low loads. It is very important that you setup LOAD constant precisly to achive LOAD window properly based with a bigger MAF if not whole car work will be crazy and all time get off maps. Title: Re: M5.9.2 + K04 + S4 injectors, how to ? Post by: alme94 on June 26, 2020, 12:01:15 AM thanks for the answers, really apreciate that ..
am I on the right way, found some sources for info and say this: MLHFM and MLOFS for maf KRKTE/TVUB for injectors but i think nyet is write that for me7, my ecu is m5.9.2 and dont have any maps but TVUB .. i have maf scaling 256x1, its from 1 to 255, number from 1 to 221 is 8.25 (1) and 673,38 (221) is positive, all after 221 is negative numbers ... Title: Re: M5.9.2 + K04 + S4 injectors, how to ? Post by: alme94 on June 27, 2020, 03:32:53 PM Someone please? Thanks
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