NefMoto

Hi,

I have tried multiple ecu's and I still keep having the same problem.

I desolder the 95160.  Solder it to a zif socket adapter.  Write it with the bin I read from the original ecu.  Solder the newly written 95160 into the ecu and the car starts and after what seems like a random amount of time between a few seconds and a 10's of minutes the car shuts off and engine fans come on blazing.

I desolder the 95160 and do a verify and it fails everytime the same locations.  I even tried putting the bin into universal immo and did immo off.  The same results.  Perhaps my original bin read is bad?

What options do I have.  Is there a way to download the flash for this particular vehicle write it and virginize the 95160, then just use ODIS?

I have about 40 hours in this thing and I am WAY UPSIDE DOWN.  We are a euro shop open for 2 years now and this will be the first vehicle I have to tell the customer I can't fix.  :(

I am to the point I am thinking about not charging the customer anything and telling them I cannot fix it.

Thanks
Chirs

Sounds like Checksum Problem… did you checksummed your file?


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Nope, I just read it from the old 95160 using VVDI Prog.

Any advice how to checksum it?  I was hoping (unfortunately assuming) VVDI did that automatically :(

Thanks
Chris

I attempted to use me7sum but this is what I get.

I assume that either it doesnt work with 95160 or it's for the flash and not the eeprom?

------------------

C:\Users\My LENOVO\Desktop\me7sum>me7sum "95160 3VWRG31Y57M411536.bin" "95160 3V
WRG31Y57M411536_csum.bin"
ME7Sum (v1.1.1) [Management tool for Bosch ME7.x firmwares]
Inspiration from Andy Whittaker's tools and information.
Written by 360trev and nyet [BSD License Open Source].

Attempting to open firmware file '95160 3VWRG31Y57M411536.bin'
File is an odd size (2048 bytes). Are you sure this is a firmware dump?

*** WARNING! 1/1 uncorrected error(s) in 95160 3VWRG31Y57M411536.bin! ***

C:\Users\My LENOVO\Desktop\me7sum>

------------------------------

Upload your file and let us see what size it is and whats inside :)


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Doesn't universal immo correct checksum when you do immo off?  If so, the incorrect checksum doesn't explain this, in this case?

Thanks
Chris

AWESOME!! :) Thanks.

See attached please.  One is the read I did from the original eeprom which is NLA.  The other is the result of immo off in immo universal of that file.  I read the originalwith an sop8 adapter before I realized how tricky these things were to read.  Now I solder them to an adapter.  It's possible my read is bad to start with?

Try this file, its patchd and Checkt :) it should work now....

Who did your Immo off ?

I'll give this a shot right now.  Could I trouble you to do a checksum on the original file?  This way the dash will not show the blinking security light? 

XOXO

Thanks!!!

I did it myself, but I am a hack at best :)

This didn't work :(   It lasted about half an hour and then shut off, same result.

At this point my last attempt here is to take the 95160 off another me7.1.1 that is not for thr BPR engine, read it, immo off, and write it.

The only thing I can think at this point is my original read was off

It seems to me that you got down to work without sufficient knowledge to complete it.  ;D

If you want to make clone of original ecu on new board of used ecu is not enough to transfer eeprom dump only.
You must also copy and replace ST10F286 CPU dump.
CPU and eeprom content are unique pair and standard immoff methods will not work here.

NOW WE ARE TALKING! 

This is exactly how it behaved, like it went through a cycle then it writes the chip and disables it.  I was thinking about disabling the write pin on the chip as a potential hack.

Would you mind sharing where the ST10F286 CPU is located? 

Since I don't have his original ECU anymore to get the ST10F286 CPU dump, how do you go about dealing with this? 

Based on my current, albeit limited, understanding of this system.

I am going to take another unmolested 07K 906 032 xx ECU , desolder the EEPROM, immo off, and convince the customer to deal with the security light blinking on the dash.

I don't have another 'BPR' version, hopefully I can read the flash off the BPR version that I currently have in there with a mismatching EEPROM and write that flash to this non BPR version.

If you don't have dumps from original ECU there is no simple way to solve a task.
The only way is convert "used" ECU to "virgine" (don't ask how) and install it with standard service procedure "replace ECU".
ST10 chip is located next to flash chip.

To work with this ME7.1.1 ecu variant you must  have all 3 parts of memory dumps:
- internal CPU flash
- external flach
- eeprom
The main problem - internal CPU flash differs in every ecu even with the same part number.
Until the dumps of the processor and its eeprom are synchronized, you will not be able to bypass the immo normally.
If you switch immoff using standard way your engine starts once and work until you switch ignition off.
At next attempt to start your ecu will be dead.

Appreciate the honest help, many people are not comfortable saying 'I don't know' to particular things.  

Basically this situation distills down to '2007 New Beetle no ecu, how to retrofit used ECU'.  Perhaps I will make a new post on this.

I 'think' the only solution to this without a security light on the dash is one of the following:

1)(a) Read immobilizer from dash
1)(b) Write it into the used ECU

2)(a) Immo off used ECU
2)(b)  Connect to dash or remove dash chip and modify immo off.

I'm not sure 1(b) is currently known how to do?

I have special equipment to do all this with BMW immo is called ISN and its the DME and EWS/CAS/Etc instead of Dash.  I barely know what I am doing with BMW and as you can see I am learning as I go here with VAG.

Ahhh, so the only way this would work is if I have a used ecu that has the correct external flash for this engine/vehicle.  If I try to write the external flash (engine tuning) from the original ECU it will mismatch this ecu internally.

If you did IMMO off on the replacement ECU without having changed the EEPROM  in the first place it would have worked - provided it was the correct ECU for the car. I did this for my ST10 7.1.1 in an R32. Also, the external flash can be changed to your hearts desire, just correct the crc first.
Gremlin mentioned  that the internal ST10 flash must match the EEPROM, so keep the one that came with the replacement ecu, dont put the old one in!

Thanks!!! 

I will grab a used Ecu tomorrow (I bought 3 out of 2.5 jettas). They arent the exact ecu for it but what was available.

Ill desolder 95160, read, immo off, write, resolder it.  Then write the external flash from the correct bpr ecu I have with mismatched eeprom st10.

Ill post back!!!

Probably wont work. The external flash needs to match the internal in the ST10. When I said you can modify the external flash I meant the one that came with the ecu , not one from another model. The addresses of maps wont match the code in the ST10. To do what you want you need the mpc original from the beetle to stick in the St10 of the jetta, the flash from the beetle and the eeprom from the beetle!

So since I dont have the original ecu from the beetle.

It sounds like my only move is to get the correct ecu for the beetle and do the immo off on its eeprom?

Sorry im dense, just making sure I got it.

You must make some steps as follows.
1. Get the original part number of ecu you want replace. Can be determined from VIN number.
2. Post here a list of ecu part numbers you have or can buy as used donor.
3. After analyze of above items can be get optimal way.

Thanks so much for your time and expertise!

07K 906 032 it also says BPR beside it, does not appear this is actually part of the part number.  This vehicle has the BPR engine.

+++ If you can't get original ecu number post VIN here - will try to get it.


What is available to me right now is the following:
07K 906 032 without the BPR designation
07K 906 032 B


+++ This is old versions of ME7.1.1 ecu for 2.5NA engine.
It used on cars manufactured until middle of 2005 year.
Ecu use C167 mcu not ST10 and you can't play any 2007 BPR firmware on it.

The VIN is the following:

3VWRG31Y57M411536

Thanks so much!

Your original ecu number 07K906032AA
Ecu based on ST10 mcu.
Beetle convertible(1Y), MY2007, engine BPR with 6-st AT.

Thanks!!!!  I’ll find one of these and immo off.

When you get the new ECU send me a PM ill help you get it setup if needed. Gremlin taught me mostly so he is a great goto.