OBD = On Board Diagnostics.. the number behind is the version. most b16s in EFs are OBD0.

Pull the carpet back on your passenger floorboard to access the ecu, there is a red light on the ecu, turn the key on and count the blinks to determine the code. short flashes = 1 long flashes = 10

so

long short short = code 12

then tell us the code(s) and we can go from there. it doesnt make sense to start tearing the car apart when the code may point you in the right direction.