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Title: AEB 16.32ms duty cycle Post by: Placebo on October 06, 2015, 05:23:00 AM Hi All
Trying to squeeze what I can out of my stock AEB injectors and have read that AEBs duty cycle is limited to 85% at 16.32ms. This is a little confusing because in my logs I don't see lean conditions once I'm pegged at 16.32ms. Also have read that 16.32ms is only what ECU shows but injectors do actually go to 100% and this is seen on some Euro ECUs for AEB which go past 16.32ms. Anyone know for sure if AEBs stop at 16.32ms or if they exceed this and 16.32ms is only a reporting limit of the ECU? Thanks in advance. Title: Re: AEB 16.32ms duty cycle Post by: nyet on October 06, 2015, 10:25:38 AM Don't forget that
1) te!=ti 2) you never want to run an injector completely static is that time te or ti? Title: Re: AEB 16.32ms duty cycle Post by: Placebo on October 06, 2015, 03:52:26 PM Thanks for responding , guess I don't know enough about injection times to provide more info; This is the mean injection time from vcds channel 2 logging, does this help clarify?
Title: Re: AEB 16.32ms duty cycle Post by: Placebo on October 07, 2015, 05:20:07 PM Still confused about this but just gonna upgrade the injectors to resolve my concerns.
Title: Re: AEB 16.32ms duty cycle Post by: Placebo on October 16, 2015, 03:50:13 PM Updated to Plug n play Bosch design iii red injectors 315cc (40$ for 4 EBAY) I know how to adjust FGATO but unclear where to find map for TEMIN to adjust STFT. Please let me know if you know this map location in M5.92 ECU.
many thanks Title: Re: AEB 16.32ms duty cycle Post by: k0mpresd on October 16, 2015, 04:15:36 PM post ori file.
Title: Re: AEB 16.32ms duty cycle Post by: Placebo on October 16, 2015, 05:42:20 PM Here be the bin. Many thanks
Title: Re: AEB 16.32ms duty cycle Post by: k0mpresd on October 17, 2015, 12:24:16 AM TEMIN, 6E74, 16bit, 0.001333 factor.
may help as well, TLST, 6E68, 16bit, 0.010667 factor. Startgrundmenge, Quantisierung von te im Start, 16 Bit, ms. also may want to adjust KFLF via % a bit to help with trims. this may not be the "proper" way to do this, but its worked just fine for me when compensating for fueling. Title: Re: AEB 16.32ms duty cycle Post by: Placebo on October 17, 2015, 06:45:42 AM Awesome info. Going to start dialing these in :)
Title: Re: AEB 16.32ms duty cycle Post by: k0mpresd on October 17, 2015, 06:26:32 PM good luck. :)
after 2 or so years i finally have a process to adjust fueling on these that i like and seems effective. o2 correction within a few %. tlst was a big help for me. 17ms is too long for larger injectors. Title: Re: AEB 16.32ms duty cycle Post by: Placebo on October 18, 2015, 08:12:38 AM So far I only adjusted FGATO downward and STFT is 2+% and LTFT is 3+%. Surprised it is this good. Maybe because I am also increasing flow due to running 33% e85 and the injectors are not enormous at 315cc?
idle seems fine , what does TLST do? Is it a voltage correction that I see discussed for those tuning ME7 injectors? Title: Re: AEB 16.32ms duty cycle Post by: Placebo on October 18, 2015, 11:24:56 AM Searched and found the answer, TLST is injector duty cycle at startup. Too large and can flood when hot start. Will see if it is an issue. Now to understand what TUVB or is it TVUB? chime in if ya know
Title: Re: AEB 16.32ms duty cycle Post by: fknbrkn on October 18, 2015, 12:05:57 PM injection time correction by voltage
Title: Re: AEB 16.32ms duty cycle Post by: Placebo on October 18, 2015, 12:19:02 PM injection time correction by voltage Thank you Title: Re: AEB 16.32ms duty cycle Post by: eliotroyano on October 18, 2015, 06:40:04 PM I have the impression that FGATO does not affect TLST, please can anyone confirm my idea or I am wrong?
Title: Re: AEB 16.32ms duty cycle Post by: k0mpresd on October 18, 2015, 07:19:18 PM I have the impression that FGATO does not affect TLST, please can anyone confirm my idea or I am wrong? tlst is a time in ms, so you are correct. Title: Re: AEB 16.32ms duty cycle Post by: eliotroyano on October 19, 2015, 05:08:40 AM tlst is a time in ms, so you are correct. Thanks, |