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Author Topic: Help Tuning M3.8.2 1.8T 150HP  (Read 75671 times)
dragon187
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« on: November 03, 2011, 06:54:35 AM »

Hello  Wink
first i want to adjust boost to 1 Bar.

it is the AEB engine, throttlebody by cable.
already mounted is a k04 turbo.

can someone explain how this ecu works.
this ecu has no map sensor.

for the maps i think i have all necessary to start.

- also mounted, wideband innovate and EGT gauge digital.

logs with ori soft:
boost 0,4 Bar
lambda 0,90
EGT 880°C

all hints are welcome.

thanks



« Last Edit: November 03, 2011, 07:13:17 AM by dragon187 » Logged
cam
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« Reply #1 on: November 03, 2011, 04:35:00 PM »

Nice - first post and too many questions :-D

First is other than need to adjust to 1 bar ;-)

MAP sensor isn't important for good tune ;-)

Do you have basic knowledge about remapping? M3.8.2 is some difficult ...

But if you have WB so let's play with that Smiley
« Last Edit: November 03, 2011, 04:48:11 PM by cam » Logged

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dragon187
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« Reply #2 on: December 17, 2011, 09:47:03 AM »

now just one question:
where is the injector constant?


07720 ?
076F8 ?
076EE ?

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rob.mwpropane
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« Reply #3 on: December 17, 2011, 03:08:31 PM »

I have not seen any docs on Me3.8.2, but I am very amateur at this, have you seen this OLS file?

 http://nefariousmotorsports.com/forum/index.php/topic,725.0title,.html

May help to locate maps, I haven't had time to load up your bin, so I'm just throwing this out. Hope it helps.
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dragon187
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« Reply #4 on: December 17, 2011, 04:06:01 PM »

thanks, but i have this ols file.
how is the right name for that injector constant that i must search for?
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rob.mwpropane
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« Reply #5 on: December 17, 2011, 11:01:18 PM »

I think maybe FKTU, but without proper docs I don't really know. In the OLS file there is FKTU.0/FKTU.1, so I'm really not sure why 2, but both maps have the same value. In your file 76DC and 76EA seem to be correct addresses.... if in fact that is constant. ******I'm not a professional, just throwing out ideas****** Maybe someone with experience tuning constant in earlier Me can verify...
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dragon187
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« Reply #6 on: December 19, 2011, 02:25:10 AM »

thank you for trying to help  Wink

there are many constans, i need the correct name.
i hope someone will help.
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Rick
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« Reply #7 on: January 06, 2012, 01:46:28 PM »

You need KHFM, it converts airflow in kg/h into pulsewidth in ms.
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RaraK
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« Reply #8 on: January 06, 2012, 02:21:05 PM »

You use stock injectors? i think they are very small injectors on the AEB motor stock
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pvl
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« Reply #9 on: January 06, 2012, 05:43:57 PM »

How good is your german  ? if you use the searchfunction, you will find a .ols project
with ALL important functions defined..   in german.
Tho people posted the file as M3.8.3 file..  which it wasn't. But still very helpfull for
converting 80% to M3.8.3. (flashable younger brother of M3.8.2)
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prj
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« Reply #10 on: January 09, 2012, 03:59:04 AM »

Injector constant is Grundanpassungskonstante, tune it using the physical formula.
You know the stock injector flow and fuel pressure, after you fit the new injectors (and/or FPR), recalculate the flow and adjust the constant. It is linear.
Don't forget to adjust injector lag time.

You will need a VR6 MAF, take the linearization maps from a VR6 ECU and copy paste.

The boost is controlled according to MAF. It does not have MAP sensor feedback, instead the "pressure" table is really a target load table. It still has N75 duty map and limitations.
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pvl
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« Reply #11 on: January 09, 2012, 07:07:15 PM »

Was wondering...   "already mounted is a k04 turbo"  there are 2-3 versions to choose from.
Would be nice to know which one it is, you have....  pictures (of tagplate) ?
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@lq!
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« Reply #12 on: January 10, 2012, 11:07:44 AM »

Injector constant is Grundanpassungskonstante, tune it using the physical formula.
You know the stock injector flow and fuel pressure, after you fit the new injectors (and/or FPR), recalculate the flow and adjust the constant. It is linear.
Don't forget to adjust injector lag time.

You will need a VR6 MAF, take the linearization maps from a VR6 ECU and copy paste.

The boost is controlled according to MAF. It does not have MAP sensor feedback, instead the "pressure" table is really a target load table. It still has N75 duty map and limitations.

Could you explain please us Grundanpassungskonstante calculation physical formula ?

Regards,

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dragon187
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« Reply #13 on: January 15, 2012, 06:25:09 AM »

Was wondering...   "already mounted is a k04 turbo"  there are 2-3 versions to choose from.
Would be nice to know which one it is, you have....  pictures (of tagplate) ?

K04-15
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rob.mwpropane
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« Reply #14 on: January 15, 2012, 05:25:27 PM »

K04-15

He meant K04-015, K04-020? I know there's different ones that fit. Should be on the data plate.

Edit: I must be seeing things, it says K04-15 in the post above^^ Tongue
« Last Edit: January 16, 2012, 05:02:26 AM by rob.mwpropane » Logged

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