S2 Auto ECU in RS Four S

[beastien]

I'm looking for a replacement ECU for an RS Four S. The owner isn't interested in aftermarket/tunable options, just a factory replacement.

Theres not many options out there, and I have read a few posts saying that an auto ECU will work.

If this is the case, are there any tricks to making it start and run correctly?

Comparing the two ECU diagrams, theres quite a lot going on with the auto ECU eg: Throttle switch for idle/full throttle, a number of connections

to the inhibitor switch.

I have read that you have to trick the ECU to think it's in park?

Any help would be appreciated, if anyone else has done this.

[rasored]

Hello Bud, when you say S2 auto I presume you mean Tiptronic. If this is the case then an R34 Skyline GTT ECU should work. I know for a fact that the Auto & Tiptronic ECU`s are incompatible to run their gearboxes if changed over. BUT if your S2 is either manual or tiptronic the skyline GTT ECU will bolt straight in & work. I have here in the UK both a NISTUNE S2 TIPTRONIC ECU & also a skyline GTT standard ECU - I think it is tiptronic & not manual = I would need to check & remind myself as had for years . [email protected] 

 

[beastien]

Yeah I meant tiptronic, I think the S2 AWD only came with tiptronic auto? I know that the GTT ECU will work, but preferably should have a Nistune fitted with the stagea base image installed.

I have found someone who may have a tiptronic auto ECU, and wanted to know if it would work without any mods in a manual.

[beastien]

The auto ECU worked.