'97 Z3 2.8 (originally) S52 swap & standalone ECU lost ABS

[e30cabriolet]

So my Z3 is finally running after bad tunes on 2 motors that died. I went to standalone & it's running great except now I have the ABS light on & the cruise that worked doesn't.

I checked all the sensors & sprayed DeOxit into every electrical connector.


My Autel says everything in the ABS is failing, I find it impossible to believe they all failed by going to a standalone. The tuner for the standalone says they are 100% unrelated systems & it can't be involved.

[bluptgm3]

My tuner says I lose cruise control with a stand alone . I would not be surprised to learn ABS is not supported as well.

[e30cabriolet]

The tuner said both are separate systems and they have no connection, I suppose the only way to find out is put the original ECU back.

The annoyance is it runs on it's own MAP so I'd have to put the MAF in & it has a Bosch 4.9 02 so the BMW 02 has to go back.