Originally Posted by collegekid

I would order a cheap ~$25 consult port adapter if you have a working consult port and check for codes before doing anything else. This is based on the assumption that you have a laptop and a working consult port.
The OBD2 connector won't work in your car, unless you have a parallel ECU install (KA24 ECU still in the car with the SR20 WC ECU controlling the swap).

Could also be a crappy O2 sensor