Power Issues/Seems to be related to ESP/ABS -- Audi s4

[m.s4]

Originally Posted by Richard L

I wonder if you can wiring the red wire of the grey connector directly to the igniton key switch (run of pre-crank position). Make sure it has a full 12V.

This inteference is so strange.

Is the s4 a FSi (direct injection system)? I think it is just a conventional injection system.

It's already wired to the ignition switch.

it's not FSI. I have it tapped into a fuel injector wire.