apexi s-afc

[collk88]

ok...i was wondering what the s-afc exactly does? can it be used on an N/A car or do you have to be running forced induction. Would i make sense for me to buy it or would it just be a waste of money?

[GEO]

a waste cause you probably won't know how to time it correctly

[ride4lame]

It works like your mass air flow sensor, it actually piggy backs it. The unit takes the signal that the mafs sends to the ECU and changes it, so that the ecu either gives the motor more or less fuel. hope that helps...If you are having issues with your fuel management(ie running to rich or lean) this device is very usefull. If you have a minimum amount of mods, it won;t do much for you