ECU stops using wideband O2 sensor while in closed loop
Posted: Thu Nov 04, 2010 11:21 am
This has been happening on and off. I am not sure for how long because I just recently started using closed loop again. My wideband reads correctly and I never notice it fluctuating unexpectedly.
The datalog shows the ecu using the O2 sensor for trim and then all of a sudden it stops. I have only received a CEL once or twice for O2 sensor. Is this correct or an error of some sort? I have the calibration set to use the wideband for closed loop.
Also, when in closed loop, the ecu leans the mixture out to stoich immediately, even when the motor is cold. Is there a way to allow it to warm up properly and then use the O2 sensor once it has reached operating temp?
I am using 1.4.8 Beta
Calibration and Datalog are attached.
The datalog shows the ecu using the O2 sensor for trim and then all of a sudden it stops. I have only received a CEL once or twice for O2 sensor. Is this correct or an error of some sort? I have the calibration set to use the wideband for closed loop.
Also, when in closed loop, the ecu leans the mixture out to stoich immediately, even when the motor is cold. Is there a way to allow it to warm up properly and then use the O2 sensor once it has reached operating temp?
I am using 1.4.8 Beta
Calibration and Datalog are attached.