Are aby ecu all the same

[Harris1]

Hi

Will any S2 aby fit my 1994 car Are all the same or different ???

Cheers all

[prj]

Immo can give issues, other than that all are the same.

[Rikki Kitto]

If they are all the same what issues can they give?

[twoqu]

Whilst the non immo ecu will work on an immo vehicle, the immo ecu will not work on a non immo vehicle.
Effectively this is down to the SW on the chip so it is possible to swop chips to unimmo an ecu providing they were originally unimmo.
There might be some other creative ways of getting round the issue mind!

[UrS4boy]

ABY and ADU Motronic ECU Part Numbers

Hi Will any S2 aby fit my 1994 car Are all the same or different ??? Cheers all

The only ABY Motronic ECU PN listed now is 895997551 X, where X = rebuilt, presumably 895997551. However, there is also mention of a 895997551A.

For the ADU the PN now is 8A0997551 X for the 8A0997551 and 8A0997551 BX for a 8A0997551B.

[Rikki Kitto]

immo,immobiliser

[Harris1]

Cheers all