* low-side NFET type (injection, ignition IGBT or extra NFET) to switch negative side to GND

* or hi-side PFET outputs (extra PFET-output) to switch positive side to +12V.

* Most Vanos solenoids are around 11 .. 12 Ohm, so current might exceed 1A, and stepper outputs are not recommended and not supported (unless with an external driver stage, that is actually simple to implement)

* p259 outputs can work with external driver (FETs with flyback diodes), usually with 1k .. 2k7 Rgs for PFET

** or 510 .. 1k Ohm pullup for NFET: will be inverted that way and NFET activated for some time after powerup (p259 output activation from software will turn off the NFET).