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Author Topic: 2.0 TFSI Turbo Pressure Limiter Problem  (Read 12840 times)
R32VAG
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« on: August 24, 2015, 04:46:27 AM »

Hello,


now i have a 2.0 TFSI car with a garret turbo. The car was already tuned by a tuner. So now the customer comes to me to change a few setting. Turbo pressure, Lambda regulation. I read out the ecu file over BDM and modified it. Changed the turbo pressure from 1,45bar to 1,75 bar and the lambda values to lambda 0,83.

After this changes i write it back to the car. The lambda value is now so much better than before.
But the Turbo pressure is at the specified field still at 2550mbar and the actual pressure is one time 2700mbar and then goes down back to round about 2500mbar.

Has anyone an idea??
May i forgott anywhere an limiter?

For password please PM
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adam-
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« Reply #1 on: August 24, 2015, 05:39:32 AM »

You can only request up to 2550mbar..

There's loads, and loads, and loads, and loads, and loads of threads about this! Smiley
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R32VAG
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« Reply #2 on: August 24, 2015, 08:35:44 AM »

What can i do to boost it up??
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nyet
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WWW
« Reply #3 on: August 24, 2015, 10:04:17 AM »

http://nefariousmotorsports.com/forum/index.php?topic=3027.0title=
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ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
Trim heatmap tool

Please 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
prj
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« Reply #4 on: August 25, 2015, 01:59:24 AM »


This does not apply to MED9, it is much easier on MED9 actually.
Probably out of reach for most people though.
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R32VAG
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« Reply #5 on: August 25, 2015, 04:13:56 AM »

Can you help my? I need to find the map sensor map...
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Beaviz
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« Reply #6 on: August 27, 2015, 02:09:03 AM »

This does not apply to MED9, it is much easier on MED9 actually.
Probably out of reach for most people though.

"Out of reach" meaning that you need to fiddle with the ASM code?
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prj
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« Reply #7 on: August 27, 2015, 04:42:59 AM »

"Out of reach" meaning that you need to fiddle with the ASM code?

Obviously.
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k0mpresd
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« Reply #8 on: August 27, 2015, 08:43:00 AM »

3bar sensor is easy enough.
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Beaviz
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« Reply #9 on: August 27, 2015, 12:09:20 PM »

Obviously.

Thanks! That was what I thought. Got to get started learning that sometime soon.

3bar sensor is easy enough.

Yes, that is piece of cake, but thread starter obviously already have that. Wink
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n0ble
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« Reply #10 on: August 28, 2015, 03:53:22 PM »

You can run more than 2550mbar without changing any of the processor code too. Just that anything over 2550mbar will be open loop so you lose some of the protection features.
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n0ble
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« Reply #11 on: August 28, 2015, 03:58:34 PM »



O = requested
P = actual

This is an example of open loop without changing any assembly.
« Last Edit: August 28, 2015, 04:09:23 PM by n0ble » Logged
prj
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« Reply #12 on: August 29, 2015, 07:58:52 AM »

Much better to say is - you can run above 2550 mbar without boost control.

If you do this, you should run a mbc in parallel to the N75 set to a safe value.
Use the N75 to control the boost up to 2550 mbar, and after that max the N75 duty and use an MBC to limit the highest possible boost.

Much better to just do an asm modification.
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rothcl
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« Reply #13 on: August 30, 2015, 03:22:57 AM »

Would you mind giving mor infos on the asm mod that is required?
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R32VAG
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« Reply #14 on: September 04, 2015, 11:48:42 AM »

Please i need help.... The boost is not going over 1,5 bar...
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