im running an automatic p28 ecu temporarly so i can see why its throwing a code 19 which is automatc transnaxle solenoid lock up,but i ran my o2 wires correct and its still throwing code 1 which is o2 sensor.how do i know if my o2 sensor is bad

 

If you replace it and the code goes away it's bad. Seriously that's about the only way, for code 1 if your wiring is correct it's the o2 sensor with the white circle plug (primary). My swap came with a bad primary plug too, so it might be somewhat common. I used a Bosch universal one wire o2 sensor from autozone for $23.00, it works great right now but I'm a little worried about how long it will last.