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Author Topic: BEX 1.8t stock file FIDC 100%, whats wrong?  (Read 1046 times)
heromanni
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« on: February 09, 2020, 08:08:24 AM »

Hello, I began to work on my 1.8t bex and first of all I removed a crap readprotected tune file from the car (boosting 1.7bar+)

I flashed the car with 8E0909518AH ori file downloaded  from the forum, car works much better and power feels more or less the same.

Now I took some logs out of the car.

There Is a 3rd gear pull attached, There is some mystery as the desired and actual lambda is around 0.75 at max load, is that normal? The Lamfa map is 0.90 at the richest point on stock file, looks like the EGT BTS kicks in hard, is this normal for a stock file? I quess not. Is there some possible hardware issues? As the lambda is so rich, the FIDC is 100% on the pull.

This is one of my first logs and maybe I have not included all necessary data. Should I add something?

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BlackT
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« Reply #1 on: February 09, 2020, 08:43:49 AM »

Yes that is normal on that file. BTS kick too soon beacuse aggressive ignition. And PID is shit on that file, you can see by yourself by desired and actual boost.
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heromanni
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« Reply #2 on: February 09, 2020, 09:10:24 AM »

Is The reason for slow boost increase because of bad turbo or is the PID actually wrong? It would mean this is not stock file, is it?

To specify, the HW is stock and plan is to use stock SW for reference
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heromanni
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« Reply #3 on: February 09, 2020, 11:53:29 AM »

Indeed That file is not stock, Would have thought that BEX had such power from factory.

Anyway, I found another file that SHOULD be stock, I did some logs quickly on a smaller road on 3rd gear up to 4000rpm, Still there is some deviation on boost actual vs desired. Any idea why? Is this normal behaviour for used turbo?
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BlackT
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« Reply #4 on: February 10, 2020, 12:23:51 AM »

Maximum air flow is 92 g/s?
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nyet
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« Reply #5 on: February 10, 2020, 12:31:05 AM »

Please include throttle plate angle and pedal position so you can use ecuxplot.
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

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 experience.
heromanni
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« Reply #6 on: February 10, 2020, 10:52:28 AM »

Hello, Now managed to go for highway for  a better log file.

I added throtthe plate angle wdkba and pedal position wped, forgot to include calculated egt but the tagbts kick in at 4krpm.  At 5600rpm the lamfa table is no longer in use, something kicks in? Is there also too aggressive timing on this file?


Is there a way to get ecuxplot to work on win7 32bit? looks like jre 9 is not supported by 32bit system.

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nyet
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« Reply #7 on: February 10, 2020, 05:29:20 PM »

Is there a way to get ecuxplot to work on win7 32bit? looks like jre 9 is not supported by 32bit system.

Unfortunately not. Maybe can use an older version of ecuxplot.
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

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 experience.
nyet
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« Reply #8 on: February 10, 2020, 05:30:36 PM »

You're not anywhere near 100%, you're at 50%

That said, you did trigger BTS.

Might want to log EGT
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

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 experience.
prj
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« Reply #9 on: February 11, 2020, 04:32:06 AM »

BEX has no EGT sensor.
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nyet
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« Reply #10 on: February 11, 2020, 08:44:07 AM »

BEX has no EGT sensor.

Does it have modeled EGT?
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

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 experience.
prj
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« Reply #11 on: February 11, 2020, 09:55:32 AM »

Does it have modeled EGT?

Yes, like every ME7.
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