Rosstech VCDS

[GlenRS]

Hi Guys,

Have been doing a bit of logging today just seeing different things and it seems I cant log 021 which is bank 2 knock sensors, nor can I see bank 2 lambda readings on 031.

Any ideas why im not seeing bank 2 at all?

[PetrolDave]

Bank 2 is controlled by the second ECU which is at address 11 not address 01.

[GlenRS]

Ah right ok, so would you put in 131 for example or do you address it another way? If so strange that it would show bank 1 and 2 on the same block. Unless that means I do have to address it elsewhere.

[PetrolDave]

Unless that means I do have to address it elsewhere.

Instead of opening the controller at address 1, you have to open the controller at address 11 - and then look at bank 1 to read bank 2

Remember VCDS is generic software for all VAG cars, and the RS4 is unusual in having 2 engine ECUs (one per bank).

So VCDS shows the normal assignments for a car with only one engine ECU, which is why it tries to show the results for bank 2 but can't.

[GlenRS]

Ah ha yes that makes perfect sense now. Thanks dave.