Does the 551L box from a 2000 A6 have immobilizer issues?

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stuklr

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	Does the 551L box from a 2000 A6 have immobilizer issues? « on: May 09, 2013, 11:14:44 AM »

I am trying to buy an extra ecu. Does the 551L box from a C5 A6, APB engine, share the same immobilizer issues that the allroad ecu's have?

Can I just flash an M box file on there and be good? Thanks.


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nyet

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	Re: Does the 551L box from a 2000 A6 have immobilizer issues? « Reply #1 on: May 09, 2013, 11:19:09 AM »

It will work fine. You may need to use bootmode to flash it the first time.


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stuklr

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	Re: Does the 551L box from a 2000 A6 have immobilizer issues? « Reply #2 on: May 09, 2013, 11:22:28 AM »

Ah, thanks. The L ecu's were hitachi maf right? Going to plug this in just to get my car moved.


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nyet

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	Re: Does the 551L box from a 2000 A6 have immobilizer issues? « Reply #3 on: May 09, 2013, 11:27:25 AM »

Yes, I believe it is hitachi. However, L-box is tip (iirc).

I'd just flash it to M.


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ddillenger

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	Re: Does the 551L box from a 2000 A6 have immobilizer issues? « Reply #4 on: May 09, 2013, 11:38:32 AM »

2000 a6 is a bosch maf, and has no immobilizer. As such, the ecu plug is the same as the s4. If you get a 2001-2002 ecu you will have to modify the large ecu connector in order to use it in the non-immobilizer equipped car, and either defeat the immobilizer or flash it in bootmode as nyet has said.


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stuklr

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	Re: Does the 551L box from a 2000 A6 have immobilizer issues? « Reply #5 on: May 09, 2013, 01:43:47 PM »

I ran an L box APR Stg 1 ecu in my Allroad before my manual swap. I had to remove the plastic tab on the ecu's socket so my connector would plug in. There was nothing I had to do about the Immobilizer though. I plugged it in and ran just fine.

But since the 2000 A6 would use a bosch maf, That too will be corrected for my hitachi maf with an M box flash. Just going to put a stock file on it to use as back-up. So now i guess I have two ECU's to flash in boot mode.

Flasing on board in the Allroad is such a pain. I swear the car refuses to flash via OBD. Will have to make a better bench flashing setup.

Thanks for the input guys.


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nyet

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	Re: Does the 551L box from a 2000 A6 have immobilizer issues? « Reply #6 on: May 09, 2013, 02:41:17 PM »

Quote from: stuklr on May 09, 2013, 01:43:47 PM

Flasing on board in the Allroad is such a pain. I swear the car refuses to flash via OBD. Will have to make a better bench flashing setup.

Once you disable immo (or use a non-imo ECU file) it is a lot easier... you may have to reduce baudrate though.


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