FAQFAQ SearchSearch MemberlistMemberlist UsergroupsUsergroups RegisterRegister
ProfileProfile Log in to check your private messagesLog in to check your private messages Log inLog in

 
Bosch Motronic red label 402 DME(need help getting started!)

 
Post new topic   Reply to topic    TunerPro User Forum Forum Index -> Bosch
 
Matich



Joined: 08 Jan 2018
Posts: 4

PostPosted: Tue Jan 09, 2018 12:50 am    Post subject: Bosch Motronic red label 402 DME(need help getting started!) Reply with quote

Hi everyone!

I have been searching around trying to find the proper XDF's and BIN's for my red label 402 DME, the only 402 files I found on the TunerPro downloads page are for a 402 silver label DME?

I'm know that the 403/405 is cross platform however the 402 is not. Could anyone please PM me the correct files to get started or should I swap the DME to another version? (it was out of a 92 325i however theres a possibility it could be swapped)

P.s Has anyone here tinkered with the non-vanos hotwire maf? People have suggested installing it in a larger diameter tube to shift the point in where it reads, although this gives rough idling down at low rpm, could this be something that a tune could fix or will the ecu always fight to correct values in these circumstances?
Back to top
View user's profile Send private message
 

 
Matich



Joined: 08 Jan 2018
Posts: 4

PostPosted: Tue Jan 09, 2018 10:23 pm    Post subject: Reply with quote

Recently found out that a m51 e36 325 tds maf is a 6pin hotwire maf also, I wonder if it could be rewired to run on an m50b25?
Back to top
View user's profile Send private message
 

 
Evil



Joined: 18 Jul 2017
Posts: 112
Location: France

PostPosted: Wed Jan 10, 2018 8:16 am    Post subject: Reply with quote

With good knowledge of how tables and headers works in motronic, you can easily found all you need from all the infos here on 403 and 413 😉
Why do you want a bigger maf? It can be useful for turbo or supercharger applications, but in naturally aspirated, maf is not a limiting factor with original cams and throttle body
Back to top
View user's profile Send private message
 

 
Matich



Joined: 08 Jan 2018
Posts: 4

PostPosted: Fri Jan 12, 2018 11:57 pm    Post subject: Reply with quote

I'm only starting so my knowledge about these DME's is very very limited, that being said I thought the best place to start would be with the correct files Question

I want to find a work around for the MAF as the car is being turbo'd and many threads I have read about the old hot-wire MAF on the non-vanos engines reaches it's limit very early (5psi), Although still tune able, I would be silly to even attempt blind tuning hahah

I would like to try keep the stock management if possible, my last resort will ultimately be full standalone.
Back to top
View user's profile Send private message
 

 
Evil



Joined: 18 Jul 2017
Posts: 112
Location: France

PostPosted: Sun Jan 14, 2018 4:22 pm    Post subject: Reply with quote

The bin and XDF you can find in the download section will work with your 402 I think. For my 403 there is 2 different soft numbers and they worked both on mine. There can be some minor differences but anyway both are OK to start with (I think there is one version for 3-Series and another for 5-Series).

You can also find some more stuff very quickly by searching on this forum.

For a bigger MAF you can look at M3 ones or V8, and copy the MAF transfer function on the corresponding bin. This is the simplest solution IMO for low boost application.
Back to top
View user's profile Send private message
 

 
Matich



Joined: 08 Jan 2018
Posts: 4

PostPosted: Mon Jan 15, 2018 4:39 pm    Post subject: Reply with quote

Do you recommend keeping the same MAF and editing the transfer function? or is this with a new hotwire maf and using the M3/v8 transfer function?

I have found a pdf here on the 402 dme which is awesome so been reading through!

P.S How do I find out the software number of my DME?
Back to top
View user's profile Send private message
 

 
Evil



Joined: 18 Jul 2017
Posts: 112
Location: France

PostPosted: Mon Jan 15, 2018 5:59 pm    Post subject: Reply with quote

Bigger maf with corresponding transfer fonction.

Soft number ls written on the chip I think. You can also find this number in the end of your Bin, using the ASCII column of the hex editor
Back to top
View user's profile Send private message
 

Display posts from previous:   
View previous topic :: View next topic  
Post new topic   Reply to topic    TunerPro User Forum Forum Index -> Bosch All times are GMT - 9 Hours
 
Page 1 of 1
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
 


Powered by phpBB © 2001, 2002 phpBB Group
RedSquare theme 1.0.3 © DoubleJ(Jan Jaap)