Mastering Normal Sensor Readings for Optimal Performance

My understanding is that when the car is running and up the normal operating temperature, the sensor generates a voltage and ideally this should be around 0.45 ... Reading OBD2 Live Data. OBDNERDZ•94K views · 11:49. Go to channel · Short ... HOW TO KNOW IF OXYGEN SENSOR IS BAD TEST OXYGEN SENSOR. Auto ... My o2's do that as well.. i think it's normal. One will read .0xx and the other .9xx at a given second. 1995 Z28 Camaro ... Bearing in mind the readings will fluctuate between 0.1V - 0.9V every second, which is roughly 1 Hz, I noticed something peculiar about bank 1. Normal Fuel trim Oxygen O2 sensor values NA Engine (non-turbo) / Drivetrain / Exhaust Modifications. A properly functioning oxygen sensor will show a rapidly fluctuating output voltage between approximately 0.1 and 1.0 volts. I think rule of thumb is 1 g/s per liter of engine displacement so we should see something in the ballpark of 3.5g/s in a normal engine with no ... I'm searching for the cause of a PO171 code, and find my downstream 02 sensor (just replaced) is reading in the .075-.1v range with the ... All the O2 voltages over 1 volt are off-scale high (rich). While in closed loop mode, both sensor 1 voltages should be oscillating from around . It doesn't mean low voltage going to the sensors it means below/above normal readings. Reply.