with the apexi safc, are there only 5 wires that needed to be spliced? and i was reading the instructions on the apexi site for the safc, would the pins be the same for the ef9 w/ b16 and my usdm ed7? thanks

 

yeah pin numbers are the same. ook up the wires like the diagram says. you can hook up the blue wire to the o2 sensor to read a/f from it. to do that go to settings -> etc-> sensor check. its under IN-2 will display in volts. .5-.6 is a stoich mixture. higher is more rich lower is more lean

 

now, i have a b18b in my hatch right now, i may/may not get a b16 and put it in. would i be able to use the vafc on the b18b incase i do get the b16? thanks