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02 sensor circuit low voltage ---answer is copied from obd-codes .com you can visit this site for more information if necessary Usually rear o2 sensor problems won't cause drivability issues since they are an input that measures catalyst efficiency (unlike front o2 sensors). However if you have other codes present, like lean codes or pre-o2 sensor codes, then they may cause drivability problems as well as P0143. The following symptoms may be present: MIL (Malfunction Indicator Lamp) illumination Engine performance issues Engine running rough Engine running rich (only if PCM is trying to add fuel to compensate for low o2 sensor voltage reading) Engine running lean (only if vacuum leak is large enough that PCM can't compensate by adding fuel) Poor idle Causes If you have reason to believe that your engine is running lean, fix that problem first, then clear codes and see if the P0157 code resets. An engine that is running lean could set this code, but usually there will be lean codes (P0171, P0174) present. The following could be causes: Air leaks in exhaust in front of o2 sensor giving false reading Engine running excessively lean O2 sensor connector damaged/corroded O2 sensor signal circuit is shorted to ground O2 sensor ground circuit is open O2 sensor has failed (it may be contaminated with fuel or coolant) PCM has failed
Disconnecting the battery should reset it but I would bet that the light will come back on. I would have a auto parts store read the error code for you. They can also reset it. There are two o2 sensors on this car one on the manifold and one down stream from the converter. If you are getting an o2 error code it could also be the converter.
The O2 sensor measures the fuel/mix after it has been burned. The O2 can tell if the engine is running rich or lean and constantly adjusts the fuel mix to a proper level. As a secondary function, there is usually a pair of O2 sensors before and after the Catalytic converter.
The readings from the first sensor are compared to the readings of the second sensor to rate the efficiency of the Catalytic converter.
At the expense of your data-loss,
atleast you get your device working back.
To perform a hard-reset on your O2 Xda Atom,
Keep pressed the POWER key, and then perform soft reset. After the device this leave everything and confirm that you want to hard-reset as shown on the screen.
Couple of things you can try to fix the issue, firstly try a hard reset
To perform a hard reset, use the stylus while pressing into the reset hole, press the power on/off button at the same time. Screen will prompt you to press the Green call and Red end call button together to confirm on hard resetting the device. *Note: Hard resetting the device will cause the device to be reset back to its original factory default settings and all data will be lost
Try that and if it doesnt resolve the issue then we can try another solution
This is the suggestion they provide on O2 website for such problems:
Perform a soft reset (PDA phone) or re-boot the device (Smartphone) and test again.
Perform a hard reset (PDA phone) or return to default settings (Smartphone) and test again. (read below before dong this)
Check that the application still fails to execute after you upgraded the ROM (OS) to the latest revision. If you haven't upgraded your ROM (OS) do so now and check again.
But before doing the hard reset, I suggest you try installing other camera software for windows mobile 5 and check if the camera still working (not a hardware problem). If its still fail, try the hard reset after backing up all you data.
To perform a hard reset, use the stylus while pressing into the reset hole, press the power on/off button at the same time. Screen will prompt you to press the Green call and Red end call button together to confirm on hard resetting the device.
*Note: Hard resetting the device will cause the device to be reset back to its original factory default settings and all data will be lost.
i hope it will help your prob.
Go to page 175 of your users manual and read how to reset. If you dont have the manual, download it from here ..http://www.seeo2.com/downloads/xdaII/Andes-Manual-031014-English-O2.pdf
You will have to use Adobe Acrobat Reader to view it.
Hope this helps