q_dubz
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« Reply #30 on: April 16, 2019, 08:56:33 AM »
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Solved a problem with the ECU identification, now engine starts with the corrected TVUB , the problem was in the checksum, while IronFelix did not see a problem , WinOLS proposed to correct checksum but after setting changes , and all was well .
Now I have entered the parameters TVUB of the above post , and corrected KRKTE , but now fuel correction in vsds 32 group
It was to be (add 0.8% , mult 18.8% ) too much difference , I think that the above reported parameters are wrong or I have wrong a bit map .
what was the cause for the high LTFT here? |
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BOLT
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« Reply #31 on: March 18, 2020, 02:33:41 AM »
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Alternately, if they came in a car that you can get an ECU bin for, you can copy the TVUB values over (if the FPR is the same).
If the FPR is different, you will need to get the spec sheet from the manufacturer to know how to compensate.
Together with the nozzles and cards can the pressure regulator itself be carried over? Google Translate |
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nyet
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« Reply #32 on: March 18, 2020, 09:26:50 AM »
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Together with the nozzles and cards can the pressure regulator itself be carried over?
Yes. |
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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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BOLT
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« Reply #33 on: March 19, 2020, 01:44:31 AM »
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Yes.
I ask for clarification I have 1.8T APU injector 0 280 155 825 Statistical flow at 3 bar, average n-Heptane, 176.7 g / min FPR standard 4bar There is an injector 0 280 155 892 Static flow at 3 bar, average n-Heptane, 269 g / min from (1.8 T quattro [APX; BAM] 224 hp, S3 quattro [AMK; APY; AUL] 210 l. from) there is set FPR at 3bar For the correct operation of these injectors, is it enough for me to set the FPR to 3 bar, change the TVUB and KRKTE from APX, BAM, AMK, APY, AUL? |
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lepatron972
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« Reply #34 on: March 19, 2020, 02:04:01 AM »
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I ask for clarification
I have 1.8T APU
injector 0 280 155 825 Statistical flow at 3 bar, average n-Heptane, 176.7 g / min FPR standard 4bar
There is an injector 0 280 155 892 Static flow at 3 bar, average n-Heptane, 269 g / min from (1.8 T quattro [APX; BAM] 224 hp, S3 quattro [AMK; APY; AUL] 210 l. from)
there is set FPR at 3bar
For the correct operation of these injectors, is it enough for me to set the FPR to 3 bar, change the TVUB and KRKTE from APX, BAM, AMK, APY, AUL?
if your fuel system is under 4bars you divide krkte found on APX BAM by 1.154700538379252 to have krkte for a circuit under 4 bars instead of 3bars Envoyé de mon iPhone en utilisant Tapatalk Pro |
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lepatron972
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BOLT
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« Reply #35 on: March 19, 2020, 02:39:39 AM »
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if your fuel system is under 4bars you divide krkte found on APX BAM by 1.154700538379252 to have krkte for a circuit under 4 bars instead of 3bars
Envoyé de mon iPhone en utilisant Tapatalk Pro
Thank you! |
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BOLT
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« Reply #36 on: March 19, 2020, 04:44:27 AM »
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if your fuel system is under 4bars you divide krkte found on APX BAM by 1.154700538379252 to have krkte for a circuit under 4 bars instead of 3bars
Envoyé de mon iPhone en utilisant Tapatalk Pro
My fuel system is 4bar the injectors that I will be working on are 3 bar, the tube and the Krkte which I plan to transfer are designed for 3 bar. |
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« Last Edit: March 19, 2020, 05:00:38 AM by BOLT »
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lepatron972
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« Reply #37 on: March 19, 2020, 05:00:27 AM »
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Моя топливная система 4бар
инжекторы которые буду ставить работают на 3 бар, TVUB и krkte которые планирую перенесть расчитаны под 3 бар.
Привет, все потоки выражаются под давлением 3 бар, когда система работает с более высоким давлением, для этого необходимо пересчитать расход. Например, инъекция, которая составляет 100 г / мин при 3 барах, расход пропорционален квадратному корню из давления, так что если вы удвоите давление, вы получите квадратный корень потока 2. Так что корень 4/3 при переходе от 3 до 4 баров Google translate Envoyé de mon iPhone en utilisant Tapatalk Pro |
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lepatron972
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nyet
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« Reply #38 on: March 19, 2020, 06:35:43 PM »
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Why not just use 4bar?
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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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BOLT
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« Reply #39 on: March 19, 2020, 11:48:17 PM »
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It would be nice to use 4 bar
since my system is standard 4 bar with return.
but the injectors that I plan to use with a 3 bar auto
Tvub and Krkte also with a car 3 bar
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nyet
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« Reply #40 on: March 19, 2020, 11:50:20 PM »
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It would be nice to use 4 bar
since my system is standard 4 bar with return.
but the injectors that I plan to use with a 3 bar auto
Tvub and Krkte also with a car 3 bar
So what? Adjust TVUB and KRKTE. That's what they're for. Your post makes zero sense. |
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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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lepatron972
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« Reply #41 on: March 20, 2020, 12:23:27 AM »
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It would be nice to use 4 bar
since my system is standard 4 bar with return.
but the injectors that I plan to use with a 3 bar auto
Tvub and Krkte also with a car 3 bar
TUVB only work on 3bars. KRKTE is adjusted according to the operating pressure of the fuel system the formula  for a V6 psa which operates under 3.5 bar injectors of 3 bar in operation it gives this ( 50,2624 x ( 2,946 / 6 ) / 213 ) / 1,08 = 0,107280639921875 1,08 = 2 √ 3,5 / 3 1,08 = 2 √ of 3.5 / 3 Envoyé de mon iPhone en utilisant Tapatalk Pro |
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lepatron972
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nyet
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« Reply #42 on: March 20, 2020, 01:11:18 AM »
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TUVB only work on 3bars.
TVUB usually has to be only slightly altered for pressure. Most injector datasheets come with pressure compensation parameters for latency. Failing that, for 3->4 bar conversion, usually you tune KRKTE to 0% stft/lambda correction during part throttle, then adjust TVUB until idle part throttle is 0. |
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« Last Edit: March 20, 2020, 01:15:18 AM by nyet »
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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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lepatron972
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« Reply #43 on: March 20, 2020, 01:15:21 AM »
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TVUB usually has to be only slightly altered for pressure. Most injector datasheets come with pressure compensation parameters for latency.
For 3->4 bar conversion, usually you tune KRKTE to 0% stft/lambda correction during part throttle, then adjust TVUB until idle part throttle is 0.
tuvb is the dead time when the injector closes and it is linked to the current which circulates in the injector this is why its axis is in voltage shorter closing time when there is 16v in power supply Envoyé de mon iPhone en utilisant Tapatalk Pro |
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lepatron972
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nyet
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« Reply #44 on: March 20, 2020, 01:16:11 AM »
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tuvb is the dead time when the injector closes and it is linked to the current which circulates in the injector this is why its axis is in voltage shorter closing time when there is 16v in power supply
latency also increases with pressure. |
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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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