oxide32
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« on: December 06, 2015, 07:28:24 AM »
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Hi all, ive been looking through the map for my 1.8t ajh Alhambra and was wondering if the KFFA map is the same or similar as the KFLBTS map on the later ecu's, its listed as "Fuel Injection Enrich Map f Cat Protec during High Load" it also contains some wild rich values 567,465 etc etc I can say that its trigger point is TKATMTRP set to 400c so its looking more and more likely. thanks all.
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oxide32
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« Reply #1 on: December 08, 2015, 01:34:11 AM »
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Bump..anyone.
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dream3R
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« Reply #2 on: December 13, 2015, 08:11:24 PM »
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trigger point will be exceeded fast on a turbo'd car.
sounds like your map but have no experience on that ecu,
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eliotroyano
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« Reply #3 on: December 15, 2015, 11:21:39 AM »
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Hi all, ive been looking through the map for my 1.8t ajh Alhambra and was wondering if the KFFA map is the same or similar as the KFLBTS map on the later ecu's, its listed as "Fuel Injection Enrich Map f Cat Protec during High Load" it also contains some wild rich values 567,465 etc etc I can say that its trigger point is TKATMTRP set to 400c so its looking more and more likely. thanks all.
Which exactly is your problem? to much fuel after some EGTs? or in some Load areas? |
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oxide32
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« Reply #4 on: December 16, 2015, 11:06:49 AM »
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Thanks for the reply guys, I'm trying to understand in what manner these numbers are used to calculate fuelling at high load, it can't be lambda afr surely as some of the numbers are so low that I'd be spitting fuel out the back. Are these values injector on time perhaps.
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k0mpresd
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« Reply #5 on: December 16, 2015, 11:45:23 AM »
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think of it as fkkvs.
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eliotroyano
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« Reply #6 on: December 16, 2015, 12:41:05 PM »
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Thanks for the reply guys, I'm trying to understand in what manner these numbers are used to calculate fuelling at high load, it can't be lambda afr surely as some of the numbers are so low that I'd be spitting fuel out the back. Are these values injector on time perhaps.
KFFA – Kennfeld für Anfettung zum Kat-Schutz bei ständig hohem tL. Attached is an example of a OEM M383 KFFA map. I understand it as (ms) injector time that will be added to current injector values at some LOADs and some RPMs.  |
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oxide32
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« Reply #7 on: December 17, 2015, 12:47:24 AM »
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Thank you again, appreciated. I did find the other maps that direct to this one and by my understanding this map is used when load enters the 6ms area and on and at all other times the mixture is held to stoichiometric...thanks once again for the direction.
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dream3R
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« Reply #8 on: December 24, 2015, 06:56:40 PM »
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Assuming it won't be alive until calc cat / load is exceeded?
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eliotroyano
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« Reply #9 on: December 26, 2015, 11:10:12 AM »
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Assuming it won't be alive until calc cat / load is exceeded?
I think so. |
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dream3R
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« Reply #10 on: December 27, 2015, 09:08:58 PM »
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I think so.
Bit more like bts then. |
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oxide32
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« Reply #11 on: December 29, 2015, 01:58:09 PM »
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Exactly right, the trigger map is 400c so very much the same as me7 etc. Just harder to calculate as it doesn't use afr but what looks like some amount of addition.
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eliotroyano
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« Reply #12 on: December 29, 2015, 03:25:15 PM »
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Exactly right, the trigger map is 400c so very much the same as me7 etc. Just harder to calculate as it doesn't use afr but what looks like some amount of addition.
How do you know is 400C? what trigger map indicate that to you? |
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oxide32
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« Reply #13 on: December 30, 2015, 08:02:09 AM »
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Kat-Modelltemperaturschwelle für Erkennung Ersatztrip (TKATMTRP) set to 400c
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dream3R
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« Reply #14 on: December 30, 2015, 06:56:42 PM »
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I've seen this type of strategy b4 on me7 on wideband cars from factory. This doest make too much sense without seeing the rest.
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