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Title: 5.92/3.83 - Maf and IAT Post by: ricekikr on August 07, 2015, 01:38:11 PM How does a 5.92/3.83 calculate fuel related to temperature differences (after fully warmed up)? I couldn't see a map that uses the IAT for fuel correction when warmed up. It does use the IAT sensor for warm up maps though.
1. Does it just use MAF? 2. MAF + IAT sensor to compute fuel? Title: Re: 5.92/3.83 - Maf and IAT Post by: eliotroyano on August 10, 2015, 05:19:51 AM I have seen that M382 uses a MAF/IAT map --> KFFMLTA 5x8 Gemischkorrektur durch Luftmassenstrom und Ansauglufttemperatur. I have looking for the same one for M592/M383 without luck. I have not see a similar map yet.
Title: Re: 5.92/3.83 - Maf and IAT Post by: overspeed on August 10, 2015, 08:29:30 AM it´s on the exactly samy spot as M3.8.2, just before KFLFLAV, but ins a little 2x2 map
Title: Re: 5.92/3.83 - Maf and IAT Post by: overspeed on August 10, 2015, 08:32:54 AM Forget to say, if you are geting unknowm enrichment when using higher gears (for example you have 0,83 lambda in 3d gear with let´s say 60 C and when in 5d gear you have 0,78 with let´s say 80°C) this will not help you.
Title: Re: 5.92/3.83 - Maf and IAT Post by: eliotroyano on August 10, 2015, 09:07:34 AM Forget to say, if you are geting unknowm enrichment when using higher gears (for example you have 0,83 lambda in 3d gear with let´s say 60 C and when in 5d gear you have 0,78 with let´s say 80°C) this will not help you. Hi Junior you are right, do you know why that behavior occurs? Title: Re: 5.92/3.83 - Maf and IAT Post by: overspeed on August 10, 2015, 10:28:20 AM Hi Junior you are right, do you know why that behavior occurs? Don´t know for sure, see some guys changing Tair sensor from manifold to inlet and get much more stable lambda values... with FMIC you get much less deviation when using a larger chinese SMIC Title: Re: 5.92/3.83 - Maf and IAT Post by: ricekikr on August 10, 2015, 07:44:24 PM Checked KFFMLTA - It only affects a small portion of the map. (when below 20c and low-mid load)
Do we have a voltage correction map, other than TVUB? Title: Re: 5.92/3.83 - Maf and IAT Post by: overspeed on August 11, 2015, 07:14:44 AM Not I found till now...
Title: Re: 5.92/3.83 - Maf and IAT Post by: eliotroyano on August 11, 2015, 08:45:29 AM it´s on the exactly samy spot as M3.8.2, just before KFLFLAV, but ins a little 2x2 map Checked KFFMLTA - It only affects a small portion of the map. (when below 20c and low-mid load) That is the reason I have the idea that it shouldn´t be KFFMLTA map there and should exist other bigger MAP in other location in dump. That way (2x2 applied below 20c and low-mid load) is almost useless. Just my idea. Title: Re: 5.92/3.83 - Maf and IAT Post by: ricekikr on August 12, 2015, 12:32:25 PM I have seen that M382 uses a MAF/IAT map --> KFFMLTA 5x8 Gemischkorrektur durch Luftmassenstrom und Ansauglufttemperatur. I have looking for the same one for M592/M383 without luck. I have not see a similar map yet. The 592 has the same exact map in it. Haven't checked the 383. 592 KFFMLTA is at 97EF Title: Re: 5.92/3.83 - Maf and IAT Post by: eliotroyano on August 12, 2015, 12:38:46 PM The 592 has the same exact map in it. Haven't checked the 383. 592 KFFMLTA is at 97EF 5x8? Which ECU HW/SW? 8D0907557N & 8D0907557P? Title: Re: 5.92/3.83 - Maf and IAT Post by: eliotroyano on August 14, 2015, 01:49:56 PM 4B0907557B M382 KFFMLTA 5x8 $09587
Mixture correction by mass air flow and intake air (Gemischkorrektur durch Luftmassenstrom und Ansauglufttemperatur) A5 08 Kg/h MAF Flow x 08 values in “Y” axis 9A 05 °C Coolant Temp x 05 values in “X” axis 8D0907557P M592 KFFMLTA 5x8 $09891 Mixture correction by mass air flow and intake air (Gemischkorrektur durch Luftmassenstrom und Ansauglufttemperatur) A3 08 Kg/h MAF Flow x 08 values in “Y” axis 97 05 °C Coolant Temp x 05 values in “X” axis |