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Old Wed, Jun-03-2015, 04:49:15 PM   #31
MartynT
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Default Re: MSS52 / MSS54 / MSS54HP Binary Modification Tool

Quote:
Originally Posted by SliM3 View Post
Martyn,
The MAP scaling information is incorrect. I meant to post a while back, but I actually went through all the disassembly subroutines related to CSL mass air and MAP, linked them together, and ultimately concluded that the MAP scaling is indeed mbars and not volts per bar.

Basically the gist of the operation is this:
  • A scale is created using HFM initial airmass (converted from kg/h to mbar, across all cylinders per 720-degrees) and the mbar value in the MAP scale; ie. 5 to 1050mbar = 0-5volts (which then becomes an analog/digital (AD) count using 512/1023 calculations)
  • The MAP sensor voltage is then sampled via the AD Converter and an associated AD count is populated. This AD count is then compared to the above scale to provide the corrected MAP value.
  • The offset makes a correction based on the specific MAP sensor circuitry to the point where voltage output will become linear. Basically fine tunes the output so there's no deviation between the sensor and the linear AD converter.

There's a little more going on behind the scenes but the above example is pretty much what's happening. The mbar conversion math for the MAP scale is x/32.
Bugger!

So the following values are no good?

76C0 0C80 0C80 8340 - GM 1 Bar MAP sensor
9A70 0026 0C80 9600 - Stock CSL MAP sensor

Cheers,

Martyn
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Old Wed, Jun-03-2015, 04:57:32 PM   #32
MartynT
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Default Re: MSS52 / MSS54 / MSS54HP Binary Modification Tool

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Originally Posted by ice.blade View Post
example this one, remove .doc
Thanks, found the issue. Will upload a new build later this eve.
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Old Wed, Jun-03-2015, 05:00:50 PM   #33
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Default Re: MSS52 / MSS54 / MSS54HP Binary Modification Tool

Nice faq Martyn.

One minor typo or verbiage clarification...

Quote:
Originally Posted by MartynT View Post

Q: Will this effect my tune from 'tuner x'?
A: If you're able to get a legit read from your ECU/DME that isn't encrypted or scambled then yes. The tool won't touch any other parameters in your tune so your tune will not be effected.
I think you obviously either mean to say
"will this work with my tune" = Yes or
"will this negatively effect my tune" = No
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Old Wed, Jun-03-2015, 05:05:13 PM   #34
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Default Re: MSS52 / MSS54 / MSS54HP Binary Modification Tool

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Originally Posted by geargrndr View Post
Nice faq Martyn.

One minor typo or verbiage clarification...



I think you obviously either mean to say
"will this work with my tune" = Yes or
"will this negatively effect my tune" = No
Fixed, thanks
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Old Wed, Jun-03-2015, 05:07:23 PM   #35
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Default Re: MSS52 / MSS54 / MSS54HP Binary Modification Tool

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Originally Posted by ice.blade View Post
bug alert Ill try this latest 1.4.2 tool but when I load anyone MSS52 partitial tool crash if I load MSS52 full than partitial works fine

old 1.1 ver works excelent
Now fixed in 1.4.3 which is available to download.

I've disabled MAP sensor swapping until I receive clarification from Sli.

Last edited by MartynT; Wed, Jun-03-2015 at 05:15:07 PM.
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Old Wed, Jun-03-2015, 05:38:34 PM   #36
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Default Re: MSS52 / MSS54 / MSS54HP Binary Modification Tool

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Originally Posted by MartynT View Post
Bugger!

So the following values are no good?

76C0 0C80 0C80 8340 - GM 1 Bar MAP sensor
9A70 0026 0C80 9600 - Stock CSL MAP sensor

Cheers,

Martyn
8340 0078 0C80 8340 - GM 1 Bar MAP sensor
(1050mbar / 120mbar / 100mbar / 1050mbar)

Stock CSL is good to go.
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Old Wed, Jun-03-2015, 06:03:34 PM   #37
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Default Re: MSS52 / MSS54 / MSS54HP Binary Modification Tool

Version 1.4.3 still crash on mine. Version 1.1 is fine.
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Old Wed, Jun-03-2015, 06:05:48 PM   #38
MartynT
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Default Re: MSS52 / MSS54 / MSS54HP Binary Modification Tool

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Originally Posted by Mackie View Post
Version 1.4.3 still crash on mine. Version 1.1 is fine.
Mackie, please send me your bin so I can see what's up.

Cheers
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Old Wed, Jun-03-2015, 06:06:37 PM   #39
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Default Re: MSS52 / MSS54 / MSS54HP Binary Modification Tool

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Originally Posted by SliM3 View Post
8340 0078 0C80 8340 - GM 1 Bar MAP sensor
(1050mbar / 120mbar / 100mbar / 1050mbar)

Stock CSL is good to go.
Cheers
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Old Wed, Jun-03-2015, 06:31:08 PM   #40
MartynT
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Default Re: MSS52 / MSS54 / MSS54HP Binary Modification Tool

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Originally Posted by Mackie View Post
Version 1.4.3 still crash on mine. Version 1.1 is fine.
Now fixed in 1.4.4.
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Discussing MSS52 / MSS54 / MSS54HP Binary Modification Tool in the Coding and Tuning Forum - Discuss all avenues of coding and tuning here! at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)