s4 mbox tries to follow ldrxn instead of ldrxn + 300

Pages: [1]

« previous next »

Author

Topic: s4 mbox tries to follow ldrxn instead of ldrxn + 300 (Read 3792 times)

Speedy_Driver_90

Newbie

Karma: +0/-1
Offline

Offline

Posts: 7

	s4 mbox tries to follow ldrxn instead of ldrxn + 300 « on: November 22, 2020, 05:10:21 AM »

Hi guys.

i got a problem and i dont really get it...

the ecu tries to follow ldrxn on point instead of ldrxn + 300. is there any map that could interfere? IAT are ok as we have less then 10°C outside. also tried to max out kfldhbn that it should not intervene. no ignition retard or other things that could suggest problems...

i only got vcds to do logs. with vcds actuall boost matches the requesting boost.

Greetings Max


	Logged

_nameless

Hero Member

Karma: +342/-466
Offline

Offline

Posts: 2802

	Re: s4 mbox tries to follow ldrxn instead of ldrxn + 300 « Reply #1 on: November 22, 2020, 05:39:46 AM »

Quote from: Speedy_Driver_90 on November 22, 2020, 05:10:21 AM

yawn. same shit from all the noobs. no logs, nothing they say makes any sense, killing safety maps... and still has no idea and overlooks the basics

"Keep in mind, this is a rough approximation. It can be off by as much as 30% or more. It is dependent on a large number of factors including air density, temperature, elevation, and the alignment of the stars and the moon. Use this formula to get close, then adjust based on real world observations."

y


	Logged

Giving your mom a tuneup

adam-

Hero Member

Karma: +124/-33
Offline

Offline

Posts: 2179

	Re: s4 mbox tries to follow ldrxn instead of ldrxn + 300 « Reply #2 on: November 22, 2020, 06:26:38 AM »

Where does it say it's RXN + 300?


	Logged

Speedy_Driver_90

Newbie

Karma: +0/-1
Offline

Offline

Posts: 7

	Re: s4 mbox tries to follow ldrxn instead of ldrxn + 300 « Reply #3 on: November 22, 2020, 07:04:27 AM »

in the s4 wiki


	Logged

Blazius

Hero Member

Karma: +89/-40
Offline

Offline

Posts: 1282

	Re: s4 mbox tries to follow ldrxn instead of ldrxn + 300 « Reply #4 on: November 22, 2020, 11:23:10 AM »

Quote from: Speedy_Driver_90 on November 22, 2020, 07:04:27 AM

in the s4 wiki

Mate you do realise that is meant to be an approximation for boost in mbar, its not 300 units added to whatever is in ldrxn. And again its higly affected by many things and relies on stock scaling...

get me7logger sorted.


	Logged

nyet

Administrator
Hero Member

Karma: +608/-168
Offline

Offline

Posts: 12271

	Re: s4 mbox tries to follow ldrxn instead of ldrxn + 300 « Reply #5 on: November 22, 2020, 03:38:42 PM »

Quote from: Speedy_Driver_90 on November 22, 2020, 07:04:27 AM

in the s4 wiki

Did you read the part in bold?


	Logged

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

nyet

Administrator
Hero Member

Karma: +608/-168
Offline

Offline

Posts: 12271

	Re: s4 mbox tries to follow ldrxn instead of ldrxn + 300 « Reply #6 on: November 22, 2020, 03:39:15 PM »

Quote from: Speedy_Driver_90 on November 22, 2020, 05:10:21 AM

i only got vcds to do logs.

Start by fixing this.


	Logged

Speedy_Driver_90

Newbie

Karma: +0/-1
Offline

Offline

Posts: 7

	Re: s4 mbox tries to follow ldrxn instead of ldrxn + 300 « Reply #7 on: November 24, 2020, 06:04:41 AM »

Is there a "how to" on here how to log properly? I tried myself to use visual me7 logger but it didnt work at all...


	Logged

adam-

Hero Member

Karma: +124/-33
Offline

Offline

Posts: 2179

	Re: s4 mbox tries to follow ldrxn instead of ldrxn + 300 « Reply #8 on: November 24, 2020, 01:23:39 PM »

Quote from: Speedy_Driver_90 on November 22, 2020, 07:04:27 AM

in the s4 wiki

It doesn't. Requested approx boost in PSI is just a rough calculation. The ECU doesn't follow that though, it follows RXN. What you end up is a result of what the ECU has done.


	Logged

Speedy_Driver_90

Newbie

Karma: +0/-1
Offline

Offline

Posts: 7

	Re: s4 mbox tries to follow ldrxn instead of ldrxn + 300 « Reply #9 on: November 25, 2020, 02:05:18 AM »

it looks like the problem is different from what i first thought.... i tried a few variations of rxn. no matter what i do max requested boost is always limited to 1 bar... could somebody look thru my bin to look whats wrong with it?


	Logged

nyet

Administrator
Hero Member

Karma: +608/-168
Offline

Offline

Posts: 12271

	Re: s4 mbox tries to follow ldrxn instead of ldrxn + 300 « Reply #10 on: November 25, 2020, 11:15:36 AM »

Quote from: Speedy_Driver_90 on November 25, 2020, 02:05:18 AM

No.

Post a log and stop breaking forum rules. Nobody here wants to waste their time on something that is going to be totally inconclusive. There is a reason there is a forum rule regarding posting bins and asking for feedback without logs.

Post a bin, you'll be guessing for months, if not forever.

Post a log, problem solved quickly.


« Last Edit: November 25, 2020, 11:17:36 AM by nyet »	Logged

Pages: [1]

« previous next »

Jump to:

Navigation

Personal Tools

November 29, 2024, 12:27:03 PM

Welcome, Guest. Please login or register.
Did you miss your activation email?

Navigation

Personal Tools

Search