typesiracing
Senior Member
i have the apexi safc i was wondering if there is supposed to be a specific "knock safe zone" and where that would be...in otherwords what does that reading do for me......and same with the pressure reading.....also under sensor check there is a in-1 and an in-2 i'm assuming that they mean input 1 and 2 but i can't remember what they would be wired to and if its o2 sensor what would be the best voltage to tune to?.....i know i'm asking a lot but i appreciate the help....thanks