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 Post subject: Re: MS42 ECU definitions
PostPosted: Sun Sep 09, 2018 3:17 pm 
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Joined: Sun Mar 27, 2016 12:10 pm
Posts: 69
Ok the changes on those maps makes some diferences on the load accuracy...so good news.

Now we need to put those on the definitions.

Another thing that is needed to know is the names of the tip in maps...or the aceleration enrichment because the bigger intakes...

What abou those vacuum calculation maps do you guys think that the vacuum changes are big on intake swap?
The names of that should be good to compare purposes and tests.

Regards, André Brito


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 Post subject: Re: MS42 ECU definitions
PostPosted: Thu Sep 20, 2018 3:40 pm 
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Joined: Wed Nov 22, 2017 10:39 pm
Posts: 3
Hello all, I've been keeping up with this topic for quite some time. I have run into an issue with my ms42. I have deleted my abs unit, so I am trying to get the ecu to bypass the limp mode for missing VSS. Seemed simple, as I would go into the vss error tab and change the RPM limit to something other than 5200 RPMs. I have done the same with my ms41 and it worked great. But when I upload the file to my ms42 with ONLY the VSS error RPM limit raised, the car is misfiring like crazy, and will hardly go over 3k rpms. I am using JM garage flasher for now, as I haven't received my cable for Galletto. the ecu version is AD. Is there something that I am missing here?


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 Post subject: Re: MS42 ECU definitions
PostPosted: Fri Sep 21, 2018 4:57 am 
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Joined: Mon May 18, 2015 8:14 am
Posts: 1042
Location: Oulu, Finland (English/Finnish)
Did you remember to correct checksums?


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 Post subject: Re: MS42 ECU definitions
PostPosted: Fri Sep 21, 2018 5:51 am 
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Joined: Sat Jan 14, 2017 5:46 pm
Posts: 534
Same thinking here.
Because you on JMGarageTool via Bootpin ... you have to correct CHKS before flash it back. You can use Ultimo CHKS corrector for this job.
Or you will send me your Original and I will have a look, correct VSS fix and Checksum if you dont know how to work with.


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 Post subject: Re: MS42 ECU definitions
PostPosted: Fri Sep 21, 2018 12:20 pm 
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Joined: Wed Nov 22, 2017 10:39 pm
Posts: 3
That's what it was. Guess I was just used to ms41 quick flash correcting mine. Thanks guys


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 Post subject: Re: MS42 ECU definitions
PostPosted: Tue Dec 11, 2018 6:16 pm 
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Joined: Tue Dec 11, 2018 11:02 am
Posts: 18
Are those definitions works with every MS42 ECU software versions?


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 Post subject: Re: MS42 ECU definitions
PostPosted: Wed Dec 12, 2018 2:46 am 
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Joined: Mon May 18, 2015 8:14 am
Posts: 1042
Location: Oulu, Finland (English/Finnish)
Not every one. AD, C6 and CA are supported which ones are the most common ones. Also 25 should open, but not much support for that. There is probaply other minor versions. Like AB that I have seen once.


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 Post subject: Re: MS42 ECU definitions
PostPosted: Wed Dec 12, 2018 6:57 am 
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Joined: Tue Dec 11, 2018 11:02 am
Posts: 18
Thank you very much! I've also got four other questions. How to find out, which version of software is in my ECU? I must write exactly the same version that i read out? In other case, can i damage ECU? How to calculate proper value to turn off EWS? I don't understand method from the thread with MS41 control bits :(


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 Post subject: Re: MS42 ECU definitions
PostPosted: Wed Dec 12, 2018 11:55 am 
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Joined: Mon May 18, 2015 8:14 am
Posts: 1042
Location: Oulu, Finland (English/Finnish)
MIKUr1 wrote:
Thank you very much! I've also got four other questions. How to find out, which version of software is in my ECU? I must write exactly the same version that i read out? In other case, can i damage ECU? How to calculate proper value to turn off EWS? I don't understand method from the thread with MS41 control bits :(


Only same version partial can be flashed in, but you can change version with full flash. You can see the version by opening the bin in ROmRaider, or if it's rare unsupported version, the version number is just at the start of the partial. For EWS delete you need to do full flash which has code modified to delete ews.


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 Post subject: Re: MS42 ECU definitions
PostPosted: Wed Dec 12, 2018 2:01 pm 
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Joined: Tue Dec 11, 2018 11:02 am
Posts: 18
Thank you for answer! Okay, so I figured out what is about in MS41 bytes and bits changes. Is there a possibility to get any information, links or something, about changes needed to be done to turn off EWS in MS42/43? I'm not asking about ready solution, only something that could help me to know what to do.


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 Post subject: Re: MS42 ECU definitions
PostPosted: Thu Dec 13, 2018 7:30 am 
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Joined: Sat Jan 14, 2017 5:46 pm
Posts: 534
isnt only byte switch like MS41, MSS50,52,54 ...


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 Post subject: Re: MS42 ECU definitions
PostPosted: Thu Dec 13, 2018 9:01 am 
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Joined: Mon May 18, 2015 8:14 am
Posts: 1042
Location: Oulu, Finland (English/Finnish)
Lambda1 wrote:
isnt only byte switch like MS41, MSS50,52,54 ...


No.

Or at least I have not seen that solution anywhere.


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 Post subject: Re: MS42 ECU definitions
PostPosted: Thu Dec 13, 2018 1:32 pm 
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Joined: Sat Jan 14, 2017 5:46 pm
Posts: 534
Quote:
No.

Or at least I have not seen that solution anywhere.

Should be It isnt ;).
MS41 and many MSS are easier. MS42, MS43, MS54 and so on isnt that easy.
Later once with RSA Signature also pure hate but also solutions are out there ... but not for free or public.


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 Post subject: Re: MS42 ECU definitions
PostPosted: Fri Dec 14, 2018 2:07 pm 
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Joined: Sat Oct 14, 2017 12:54 am
Posts: 296
Location: Oregon, USA (English)
In the RR Logger, what tables are the parameters Idle Speed Controller and Idle Speed Duty Cycle linked to?

Also does anyone know the ms42 equivalent of these MS41 functions :

Closed Throttle Threshold
Intercept - Engine Speed Threshold
Rapid Engine Speed Drop - Integral Additive
Rapid Engine Speed Drop - Engine Speed Gradient Threshold
Dashpot - Nominal (MS42 AD address- 0x4CF4 ??)
Dashpot - Decay Limitation (MS42 AD address- 0x59FB ??)


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 Post subject: Re: MS42 ECU definitions
PostPosted: Fri Dec 14, 2018 4:20 pm 
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Joined: Mon May 18, 2015 8:14 am
Posts: 1042
Location: Oulu, Finland (English/Finnish)
323toslow wrote:
Dashpot - Nominal (MS42 AD address- 0x4CF4 ??)
Dashpot - Decay Limitation (MS42 AD address- 0x59FB ??)


KF_ABR_PWG_DIF_NEG and KF_PWG_DIF_NEG_FAK. I will add those to next definition version.


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