NefMoto

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 

You don't need to change the EEPROM.................................... at all...

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

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

perfect. thanks!

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.

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?

Is one of the flashes immo2?

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

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.

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.

No.

I'm in NA.

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).

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.

I've been trying to get you to confirm and show how/why you think N/A B5's are immo2 equipped (although latently), rather than immo3 equipped like the ROW B5 RS4's.  Did you ever get around to taking picks of the back of your 'immo2 equipped N/A B5 S4 cluster'?

Are the ROW B5 S4's (not RS4's) immo2 or immo3?  If they're immo3 as well, I can't imagine that Audi equipped every other B5 with immo3, and latently equipped the NA B5 with immo2.  They would have no reason to change compared to ROW cars, especially since immo is not even active in NA cars and was just left in there anyways.

I don't have a b5 immo-cluster. I have an 01 c5 immo cluster, and under the EXTRA field it lists the immo-ID but not a vin (thus my conclusion of immo-2)

I'll pull the cluster from the car tomorrow and take it apart. I have a non-immo cluster already pulled apart, shouldn't be difficult to get some comparison photos. It's just so damn cold I hate being outside any longer than necessary.

Ah, well B5 could definitely be different either way.  And if you don't have a verified immo3 cluster to compare it with, then it's kinda pointless anyways.  I'd say not to go to the effort of removing it in the cold.

We have enough European tuners in here that know exactly which immo their B5 S4's and RS4's have, so verification shouldn't be tough.

Who knows, I might be wrong about it being immo-2. It would make sense for it to be 3 assuming ROW car's of the same era are. I was basing this solely on the lack of a separate immobilizer box and lack of a vin in the extra field. You've renewed my curiousity, I'll definitely be pulling the cluster tomorrow.

usa b5's are NOT immo2. they have no immo.

What immo does the European B5 S4's have?  How about the European B5 RS4's, what immo do they have?

I know, I was generalizing based on the year, and what generation immo would have been equipped if available. My observations are based primarily on c5's, which I was under the impression were 2. However I can't imagine that to be true if it's confirmed ROW b5's were immo-3.

Has anyone pulled the trim off their steering columns (b5 guys) to see if the RFID receiver coil is installed? I know on my 2000 a6 it was, and that didn't come with immo (although now it does).

how is this so hard to figure out? log in with vcds to engine controller and boom, theres your answer. 2 vs 3. why so many guesses?

Not all of us have Euro-spec cars to VCDS...

i would imagine 50% of the people on here have them though.

For sure. I thought you were specifically addressing me.