As the subject says, when the ingition key is switched to on, the nitrous and fuel solenoids are being triggered for a brief moment causing a small amount of fuel and nitrous to be injected into the manifold which causes a nasty "pop" when you start the engine.
I'm using AUX8 (A34) to connect to the relay that controls the solenoids. I'm thinking it's got something to do with the polarity and output mode but am not sure so was wondering if someone could shed some light on this for me or point me in the direction of where I may find some documentation for this?
Thanks.