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Author Topic: immo3 - insert vin then handle checksums?  (Read 18737 times)
elRey
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« on: February 06, 2013, 07:56:12 PM »

Hello all,

Here's my question: I have a 032HS and a 032LP ECU. With some experimenting I found I can flash one with the other only IF I also flash the immo chip with the corresponding immo dump. i.e LP flash + LP immo dump onto LP hardware works. It wouldn't without the immo dump.

How can I retain the original VIN when changing immo flashes? I want to flash a LP flash onto a HS ECU which requires the LP immo, BUT retain my HS VIN (defeated or not I want my VIN to show on the ECU).

Thanks,
Rey 
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Gonzo
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« Reply #1 on: February 06, 2013, 08:24:48 PM »

You don't need to change the EEPROM.................................... at all...
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elRey
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« Reply #2 on: February 06, 2013, 08:41:37 PM »

not my experience. i cant say its need 100% of the time, but the handful of ecus i've toyed with it has been the case. However I've been playing with 2.0L ecus mostly. HS /LP was an example I used. But FP/LP is the typical situation I've seen. Also MC/LP.

Regardless of reason, I would still like an answer to me question.

 Thanks,
Rey
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k0mpresd
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« Reply #3 on: February 06, 2013, 09:03:28 PM »

have you tried just changing the vin and immo data then running the edited file through the chks fixer?  http://nefariousmotorsports.com/forum/index.php?topic=1727.0
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elRey
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« Reply #4 on: February 07, 2013, 08:17:57 AM »

perfect. thanks!
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ddillenger
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« Reply #5 on: February 07, 2013, 09:11:00 AM »

Doesn't that checksum corrector just apply the fixes for standard immo-off mods rather than actually calculating them?
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k0mpresd
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« Reply #6 on: February 07, 2013, 09:12:09 AM »

Doesn't that checksum corrector just apply the fixes for standard immo-off mods rather than actually calculating them?

i used it and it corrected all.
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aef
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« Reply #7 on: February 07, 2013, 11:26:37 AM »

can someone explain how flash and eeprom interact to eachother?

elRey, do both ecus have the same bosch hardware number or can you go into detail what doesnt work?
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ddillenger
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« Reply #8 on: February 07, 2013, 11:30:58 AM »

Is one of the flashes immo2?
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jibberjive
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« Reply #9 on: February 08, 2013, 06:51:27 PM »

perfect. thanks!
Did this fix your issues?  Does your car now show your original VIN, and you also have no issue with immo?

have you tried just changing the vin and immo data then running the edited file through the chks fixer?  http://nefariousmotorsports.com/forum/index.php?topic=1727.0
Immo is checked in 3 places, the .bin, the 95040 EEPROM, and the cluster, right?  So if one keeps the stock vin in the new EEPROM, does that not not affect immo in the .bin that contains the new VIN?  Or is there no VIN info on the .bin and cluster, and it's only on the EEPROM (and not used for immo purposes)?

Also, say you just flash the .bin and EEPROM from a different car, wouldn't the cluster's immo keys be different?  Would you just do the VAG-com adaptation for the cluster to get it to match the new EEPROM and .bin?  Just trying to get a handle on this immo stuff and how VIN relates to immo.
« Last Edit: February 08, 2013, 07:03:28 PM by jibberjive » Logged
ddillenger
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« Reply #10 on: February 08, 2013, 06:55:28 PM »

I don't think any of this is relevant (jibberjive) to your situation. B5's are immo-2, there is no vin stored in the eeprom. I have little experience with immo-3 (other than turning it off) but of all the cluster dumps I've seen for immo-2 clusters the vin was absent there as well.
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prj
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« Reply #11 on: February 08, 2013, 06:57:09 PM »

B5's are immo-2, there is no vin stored in the eeprom.

No.
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ddillenger
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« Reply #12 on: February 08, 2013, 06:58:48 PM »

I'm in NA.
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jibberjive
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« Reply #13 on: February 08, 2013, 06:59:49 PM »

No.
K-box B5 RS4's are immo3, right?  At least that's what I've got from my reasearch (and am hoping you can confirm, considering you own one lol).
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ddillenger
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« Reply #14 on: February 08, 2013, 07:02:25 PM »

This is where I get confused. Everyone says rs4 is Immo-3, but NA cars from 2000-2001 are Immo-2. If I were going to retrofit Immo into a north american car I'd probably go Immo-2. My experience with ROW car's is very limited.

And do Immo-3 equipped cars use a seperate immobilizer box, or is it integrated into the cluster like Immo-2? I think that would be another reason to stick with 2 for NA car conversions.
« Last Edit: February 08, 2013, 07:04:59 PM by ddillenger » Logged

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