Reprogramming new engine computers: is it possible without problems?

Hello,

My engine control unit is coded with 0005.

I am only familiar with the following meanings for these codes: 0001 = manual transmission, and 0002 = automatic (or vice versa).

I would like to know what is hidden behind my codes 0001 through 0004, and I would therefore like to try recoding it.

However, I'm not entirely convinced about this approach in the age of OBD, given the potential pitfalls.
If, for example, an irreversible lock were to be triggered during the 4th re-encoding process, I would have been completely stuck and unable to revert back to the original encoding.

Should I be concerned about this, or is it possible to reflash the software of ECUs that are compatible with OBD an unlimited number of times?

Hi Ulf,

I have an idea... --> PM (Private Message)

Bertil wrote:

Hi Ulf, I have an idea... --> PM

Danke, aber für Deine Idee fehlen mir leider diverse Voraussetzungen . . .

My question is still not clear to me, so if anyone has any further input, please feel free to share it.

Part number of the control unit?

Theresias wrote:

Teilenummer des Steuergerätes?

038 906 019 LA - I just copied that from a log file...

00005 - Without air conditioning, with ABS, with extended maintenance interval.

The detailed breakdown is coming up next...

Theresias wrote:

00005 - without air conditioning, with ABS, with extended maintenance interval. Die genaue Aufschlüsselung folgt...

Aaah, great! Thanks in advance .

Okay, here's the breakdown...

00002 - mit Klima, mit ABS, mit WIV
00005 - ohne Klima, mit ABS, mit WIV
00008 - mit Klima, ohne ABS, mit WIV
00011 - ohne Klima, ohne ABS, mit WIV
00102 - mit Klima, mit ABS, ohne WIV
00105 - ohne Klima, mit ABS, ohne WIV
00108 - mit Klima, ohne ABS, ohne WIV
00111 - ohne Klima, ohne ABS, ohne WIV

*edit*

In the next update, it will also include [url=www.openobd.org/vw/polo_9n.htm#01]here.

@Theresias

Do you happen to know how different encodings might affect identification fields, or do you know of a source where I could find that information?

@Theresias

weißt du zufälligerweise auch wie sich die verschiedenen codierungen auf etwaige kennfelder auswirken, oder weißt du eine quelle aus der man das erlesen könnte?

I wouldn't necessarily assume a change in the characteristic curves, certainly some parameters will be adjusted, but another possibility is a modification of the CAN bus communication.

That's probably the case!

Is there a source we could tap into...?

gibt es ne quelle, die man anzapfen könnte.....?

As far as I know, unless you have someone at VAG in the engine control unit development department who has access to and knowledge of the relevant documentation...

Hi,

Quote:

00005 - No air conditioning, with ABS, with power windows.

That's interesting... my ASV (does this apply to him as well?) also has the code 00005, just like Ulf's ASZ.

Just... I have.

- No annual value added tax (VAT) (standard rate of 15%).
- With MIT's climate initiatives.

ABS is also included, but that's correct anyway.

There's naturally a housing around the motor, but that shouldn't matter.

Were the people at Seat too incompetent to code, or is the list not universally applicable?

EDIT: The engine control unit (ECU) is: 038 906 018 FB.

Best regards,

Jan.

Das ist ja interessant... mein ASV (gilt das fuer den auch?) hat wie der ASZ von Ulf ebenfalls 00005 als Kodierung.

According to my Seat list, the ASV doesn't have '00005' as a code; it only has '00001' and '00002,' but I might be looking at the wrong information.

Ist natuerlich ein Seat um den Motor drum herum, aber das sollte egal sein.

No, it's not; the ASZ engine also has other coding configurations at Audi.

Waren die bei Seat zu daemlich zum Kodieren, oder ist die Liste nicht allgemeingueltig?

No, she is not.

Hi Jan,
'Your Ibi has a completely different generation of control units installed compared to Ulf's.'
Polo. You have an MSA15 with a split connector (C166 CPU, 2 PLCC32 EPROMs; e.g., 27C010).
In the engine control unit (ECU), there is an EDC15P+ with a C167 microcontroller and an AMD Flash memory chip (AM29F400).

Best regards, Rudi.

Hi,

"@Rudi: That's already clear (since it's a VP vs. PD engine, which means a different generation of engines), but because '00001' seems to universally indicate manual transmission and '00002' indicates automatic transmission, I assumed that the same logic applied to everything else, which apparently isn't the case. You never stop learning..."

Quote:

According to my Seat list, the ASV doesn't have "00005" as a code; it only has "00001" and "00002," but I might be looking at the wrong information.

If you happen to have the list again... could you take a look at it? It's definitely 00005, and it has been that way from the beginning. Since I am the original owner, no one has tampered with it. However, it was imported from the Netherlands, so perhaps different codes apply.

Best regards,

Jan.