hi all i am using the torque pro app on my cell phone with the best bluetooth adapter that torque list. with the app i can read out the main lean air fuel sensor voltage in 0.230V to as high as 0.750V on a really cold night. when in lean burn in my 98 civic hx 5 speed i see numbers around 0.420V to 0.472V in normal crusing i range from 0.500V to 0.599V. when wide open throttle i see 0.600V and up. i can also read out a lot of live data and read can clear codes when driveing.
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