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IamwhoIam
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« Reply #15 on: November 21, 2012, 04:30:50 AM »
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I don't think increasing KFLDIMX and KFMIRL at part throttle are going to improve your fuel consumption...
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I have no logs because I have a boost gauge (makes things easier)
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hipeka
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« Reply #16 on: November 21, 2012, 11:45:39 AM »
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« Last Edit: November 21, 2012, 03:02:09 PM by hipeka »
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elRey
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« Reply #17 on: November 21, 2012, 04:45:47 PM »
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address 6700A
16bit LoHi 1x1
Factor:
0.0035888671875 for gas AFR
or
0.0002441406 for lambda
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phila_dot
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« Reply #18 on: November 21, 2012, 05:14:47 PM »
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Op...
WTF?
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jibberjive
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« Reply #19 on: November 21, 2012, 06:26:59 PM »
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"... and that was the last they ever seen hipeka."
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hipeka
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« Reply #20 on: November 22, 2012, 12:52:48 AM »
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« Last Edit: November 22, 2012, 01:07:13 AM by hipeka »
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hipeka
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« Reply #21 on: November 22, 2012, 12:56:45 AM »
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I am still here to bother you pro's with my stupid questions and silly thoughts. I have read this forum for a while now and noticed that more people learn about this ecu program modding they seem to assume that all others also know what they have learn. I have use search funktion several times and haven't find info which maps/constants/funktions affect to consumption readings. That why i asked those things and get answers like buy a diesel  Another thing is that my native language ain't english so that make thing ever harder for me. Sorry |
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« Last Edit: November 22, 2012, 01:06:54 AM by hipeka »
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prj
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« Reply #22 on: November 22, 2012, 02:09:26 AM »
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Your problem is not the ECU.
Your problem is not understanding what constitutes fuel efficiency in an internal combustion engine.
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nyet
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« Reply #23 on: November 22, 2012, 02:16:29 AM »
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I'll bite.
The problem is that everybody thinks that leaning out their AFR will help them magically get better gas mileage.
However, a lean burn is leaving power on the table (for a given amount of fuel), which means that for a given amount of desired torque, you'll have to use MORE fuel than you would if you ran stoich and just injested both less air AND less fuel.
If you want to lower consumption by producing less power, you're better off running stoich and using less throttle...
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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prj
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« Reply #24 on: November 22, 2012, 02:37:21 AM »
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If you want to lower consumption by producing less power, you're better off running stoich and using less throttle... This is not correct. Stoich is not best economy nor best torque. It's just something for tree huggers. Running leaner will increase efficiency. |
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hipeka
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« Reply #25 on: November 22, 2012, 03:36:32 AM »
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This is not correct. Stoich is not best economy nor best torque. It's just something for tree huggers.
Running leaner will increase efficiency.
This is also what i have been told and read. Thats why i first place start to read about this mixture change. Your problem is not the ECU.
Your problem is not understanding what constitutes fuel efficiency in an internal combustion engine.
I have some understanding about what constitutes fuel efficiency due to my studies in polytechnic and i even manage to accomplish degree Bachelor of Engineering in car and transport technics. I have spend quite a while at school time in carlaboratory using dynamometer and enginebrakes. But that was years ago and we mostly test and adjust rally cars which are not weighted to fuel economy. So i might have to try find my school books back in table |
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Rick
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« Reply #26 on: November 22, 2012, 03:50:37 AM »
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I'll bite.
The problem is that everybody thinks that leaning out their AFR will help them magically get better gas mileage.
However, a lean burn is leaving power on the table (for a given amount of fuel), which means that for a given amount of desired torque, you'll have to use MORE fuel than you would if you ran stoich and just injested both less air AND less fuel.
If you want to lower consumption by producing less power, you're better off running stoich and using less throttle...
You want to use MORE throttle to to gain economy Rick |
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hipeka
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« Reply #27 on: November 22, 2012, 05:58:55 AM »
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You want to use MORE throttle to to gain economy Rick I have heard that some of modern engine control systems open egr more then necessary so throttle can be opened wider. That help redusing pumping losses and make better economy. |
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prj
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« Reply #28 on: November 22, 2012, 06:05:53 AM »
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I still think the solution to this problem is 1.9 TDI  |
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nyet
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« Reply #29 on: November 22, 2012, 10:39:48 AM »
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You want to use MORE throttle to to gain economy Rick Pedant  |
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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