I have a 95 neon soc automatic. Was driving down the road the other day and the car just stalled a few times and died. Threw a trouble code for an o2 sensor. Replaced o2 sensor in bank 2 (near cat). Few days later same thing, died a few times, drove to autozone and got a code for ignition system.. replaced coil and it still didn't fix the problem. Within the last six months I have replaced the computer, coil, both 02 sensors, purge
canister valve, fuel pump, and plugs/wires. It still isn't fixed. Died three times yesterday while driving in the city and threw two codes: 12 (battery disconnect not relevent) 21: Problem with oxygen sensor signal circuit. Sensor voltage to computer not fluctuating. I could have recieved a bad oxygen sensor but can an o2 sensor really make the car die completely? Is it possible for a fuel problem (water in fuel, faulty fuel pump) to cause an engine code light to come one? The car runs fine, has plenty of power and then all the sudden light comes on and chug chug, die. Then it starts back up usually on the first try. Any info would help.