O2 not cycling right

[GRace]

My O2 sensor is not cycling right at idle. Other threads about this topic usually lead to the conclusion that the O2 sensor is bad. I replaced mine about 200 miles ago, (3 months, not a dd). I will post a log from EcmLink, maybe my O2 sensor is dead? I have been adjusting the deadtime for my 680cc injectors to lower the combined fuel trim but it isn't affecting the O2 readings.

 

[Sandman817]

Check for any air leaks before the sensor. Also, what were your fueltrims before you adjusted them? If your sensor is staying close to 0v or close to 1v you either hav ea problem with fueling or your sensor is just dead.

 

[Sandman817]

Could you post a log with rpm, ect, throttle position, long term fuel trim and oxygen sensor voltage?

 

[GRace]

Could you post a log with rpm, ect, throttle position, long term fuel trim and oxygen sensor voltage?

It's in the first post, let me know if its not showing up. I do have an exhaust leak at the manifold gasket but would that really change the readings? I got some help at the ecmlink forum saying it was ok as long as my global fuel setting is right. I didn't know how active that forum was so I posted here too.

I had this same problem with the stock injectors and I assumed it was because I hadn't adjusted anything yet. When I actually drove the car it started cycling (with stock injectors). I haven't driven with the new setup yet, I just got my wideband installed tonight.