02 reading 0

[droptopgst]

Anyone have any ideas what would cause this? I know that on a 2g you dont worry too much about 02s as long as the timing is good. My timeing curve is fine (12-19), temp. is below 1500, and gas mileage is the same. The past few logs I have done have 0 as an 02 reading. What would make this happen?

 

[Nanan]

Ah dead 02, bad plug on the 02, short in a wire, or the least likely a bad ecu.

 

[droptopgst]

Well the 02 sensor was just replaced about a year ago, maybe 30,000 miles. Is that enough to kill it?

I also thought my gas mileage was suck as well as performance?

Is there any way to test and see what is working and what is not?

 

[sinfire55]

I've got the same problem. I just replaced my front o2 last weekend and it still reads the same, 0.00v~0.16v at the very highest, but usually only goes up to 0.04. But if it were really reading that low, I'd be misfiring like crazy. I thought that maybe it had something to do with me having a 6 bolt motor with the original ecu?

 

[Nanan]

I've got the same problem. I just replaced my front o2 last weekend and it still reads the same, 0.00v~0.16v at the very highest, but usually only goes up to 0.04. But if it were really reading that low, I'd be misfiring like crazy. I thought that maybe it had something to do with me having a 6 bolt motor with the original ecu?

Um 1g 02 sensor will not work with the 2g OBD2 computer as the sensor is mapped out differently.



droptopgst:
Check your wires leading up to the sensor, they loop over the exhaust manny so there is a chance that it has melted and shorted out. This was one of the hand full of problems with my car.

 

[sinfire55]

Um 1g 02 sensor will not work with the 2g OBD2 computer as the sensor is mapped out differently.

Its not a 1g sensor, its still the 2g.

 

[droptopgst]

The wire was fine but I replaced the front 02 and its reading bank 1 now. guess its time to tune again! Be back with a new log!