Unlocking Normal Sensor Readings A Comprehensive Guide

Hey I was just wondering what normal voltage should be for o2 sensors mine seem a bit low. Downstreams tend to hang below .4v usually around ... Technically the average of those two numbers is .45 volts which is what they say upstream should average out to but that is when they are ... 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 ... Unfortunately, there's no single "normal" MAF sensor reading applicable to all vehicles. The normal range varies widely depending on several ... In answer to your question 4.2 to 6 is correct MAF reading for warmed up idle, remember it's calculated PCM looks at IAT and MAS (sensor ... If the upstream O2 sensor voltages appear normal (cycling) and the downstream voltage is tracking the upstream O2 voltage then your cat is bad. It's the ECU responding to changes from the O2 sensor that you see taking place. I found out about 15 years ago that as they get old they become lazy and the ... I am getting polar opposite air/fuel readings between the two banks. Bank 1 is read high mV and bank 2 is reading ridiculously low mV. A good O2 sensor generates more than 0.8V when heated under the condition of no oxygen. When there exists enough oxygen, voltage drops and it ... ... sensor voltage reading, and A/F ratio based off of that. The voltage did jump all over the place under normal driving, and when steadier ...