Subpage of MembersPage/SFiftyBthirtyTwoVanos

BMW S50B32 Vanos subsystem

4 * PFETs (controlled by logically neighbor p259 outputs) are used to drive VANOS solenoids (2 intake + 2 exhaust).

wires for Advance / retard solenoids

With EC36 install, one just connects the output A and output B as suggested by [VT help], swapping wires if necessary

[Pieter from DP-engineering] professional installer and reseller kindly reported he diagnosed he swapped physically and acquired perfect VANOS target-follow behavior

Might be useful with the 4xPFET addon board on top of mot88 mainboard (depending on how the signals, p259 outputs are wired).

If uncertain, we will review any vemslog focusing on Vanos cam behavior. (let us know how it was wired, especially if EC36 install ).


inverting output (eg. with fw that really inverts, eg. fw different than 1.2.40 2018-02-06) is not the same for dual VANOS as swapping the advance and retard solenoid wires.

To get perfect VANOS result, we recommend to do what is really needed, not the other action: