Pages: [1] 2 3
Author Topic: 3B0 920 949/MK4 Needle Sweep  (Read 22141 times)
adam-
Hero Member
*****

Karma: +124/-33
Offline Offline

Posts: 2179


« on: July 24, 2017, 05:07:17 AM »

Someone has just uploaded a video of a MK4 cluster performing a needle sweep on startup.  The comments seem to reveal that it's a Passat board with over 200 bits changed in the EEPROM.

Now, does anyone know what's been changed, or have a copy of said EEPROM?
Logged
KasperH
Hero Member
*****

Karma: +24/-8
Offline Offline

Posts: 630


« Reply #1 on: July 24, 2017, 09:30:42 AM »

Link to video?  Grin
Logged
adam-
Hero Member
*****

Karma: +124/-33
Offline Offline

Posts: 2179


« Reply #2 on: July 24, 2017, 03:23:08 PM »

https://www.youtube.com/watch?v=2bPcrHnFDW4

I now have it stage round, but it doesn't return.
Logged
vwaudiguy
Hero Member
*****

Karma: +53/-37
Offline Offline

Posts: 2024



« Reply #3 on: July 24, 2017, 09:30:05 PM »

You can do this with VCDS to test the needle sweep. Maybe that could clue us in.
Logged

"If you have a chinese turbo, that you are worried is going to blow up when you floor it, then LOL."
vwaudiguy
Hero Member
*****

Karma: +53/-37
Offline Offline

Posts: 2024



« Reply #4 on: July 24, 2017, 09:35:43 PM »

 Posted 27 January 2010 - 04:46 PM

Graeme, I have tracked the guy down his name is Svenni from R32club.de but I cannot register to ask him how complicated the module is to build.

His username is Bisheep on r32club.de.

There was also some talk about a square wave generator tapped into the signal feed to the cluster, triggered with ign on
« Last Edit: July 24, 2017, 09:42:47 PM by vwaudiguy » Logged

"If you have a chinese turbo, that you are worried is going to blow up when you floor it, then LOL."
vwaudiguy
Hero Member
*****

Karma: +53/-37
Offline Offline

Posts: 2024



« Reply #5 on: July 24, 2017, 09:54:09 PM »


https://www.youtube.com/watch?v=AK3YjiQZwZE
Logged

"If you have a chinese turbo, that you are worried is going to blow up when you floor it, then LOL."
adam-
Hero Member
*****

Karma: +124/-33
Offline Offline

Posts: 2179


« Reply #6 on: July 24, 2017, 11:30:18 PM »

I've got it to sweep round but it stays at the max position.  I'm going to try a Passat flash. 

People are saying they're "injecting custom code" but that's not a thing in an EEPROM that size.

ALSO: Why are people being so secretive?  It's a MK4 Golf ffs. 
Logged
megadoc
Newbie
*

Karma: +0/-0
Offline Offline

Posts: 12


« Reply #7 on: August 12, 2017, 10:15:23 AM »

the info was made public today..enjoy
http://www.users.on.net/~graeme86/sweep501/sweep501.html
http://www.users.on.net/~graeme86/sweep503/sweep503.html
« Last Edit: August 13, 2017, 02:19:21 PM by megadoc » Logged
H2Deetoo
Sr. Member
****

Karma: +26/-1
Offline Offline

Posts: 257


« Reply #8 on: August 14, 2017, 04:49:22 AM »

Very interesting that these clusters allow a "code patch" residing in eeprom area.
Does anyone know if newer types of clusters like VDO NEC (PQ) support such feature also?


Rgs H2Deetoo
Logged
adam-
Hero Member
*****

Karma: +124/-33
Offline Offline

Posts: 2179


« Reply #9 on: August 14, 2017, 05:03:28 AM »

I implemented this the other day and it works.

I want to know HOW it works though, but that doesn't seem to be an option.

I read through the datasheet but nothing really stuck out.
Logged
vwaudiguy
Hero Member
*****

Karma: +53/-37
Offline Offline

Posts: 2024



« Reply #10 on: August 14, 2017, 09:32:16 AM »

Awesome
« Last Edit: August 14, 2017, 09:37:52 AM by vwaudiguy » Logged

"If you have a chinese turbo, that you are worried is going to blow up when you floor it, then LOL."
macxxx
Sr. Member
****

Karma: +30/-1
Offline Offline

Posts: 498


« Reply #11 on: August 14, 2017, 02:50:47 PM »

adam- do you have any datasheet for micronas used in the clusters?
Logged
H2Deetoo
Sr. Member
****

Karma: +26/-1
Offline Offline

Posts: 257


« Reply #12 on: August 15, 2017, 04:00:25 AM »

Isn't it just simply some assembler code block?
Logged
adam-
Hero Member
*****

Karma: +124/-33
Offline Offline

Posts: 2179


« Reply #13 on: August 15, 2017, 04:21:43 AM »

I don't think so.

The EEPROM just contains settings AFAIK.
Logged
fknbrkn
Hero Member
*****

Karma: +186/-24
Offline Offline

Posts: 1455


mk4 1.8T AUM


« Reply #14 on: August 15, 2017, 08:04:59 AM »

I don't think so.

The EEPROM just contains settings AFAIK.

seems that there is some call to the code inside eeprom  Undecided
post datasheet pls
Logged
Pages: [1] 2 3
  Print  
 
Jump to:  

Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Page created in 0.022 seconds with 17 queries. (Pretty URLs adds 0.001s, 0q)