The Essential Guide to Normal Sensor Readings

Anyone who has experience tuning or working with 3800sc fiero swaps, can you give me a quick rundown of what all the sensor readings should be ... Anyway, the downstream O2 should be somewhere in the middle (0.45V) if the cat is still there. The AF sensor though, as per the FSM, fluctuates ... 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 ... 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 ... WHAT IS NORMAR READING UPSTREAM OXYGEN SENSOR IN MILLIAMPS ON MAZDA SUBARU HONDA TOYOTA If you are trying to see the normal reading for ... O2 sensors should be between 400-700 mV, however that also depends on how rich/lean you are running. At idle, the MAF should read <2 lb/min. Will this service help my vehicle? started 11 years ago. maintenance & repairs · 5. All sensors measure about 10-ohms cold, and about 16.5-ohms hot. -Voltage readings were taken after car was running (idle) for about 20 minutes. If the upstream O2 sensor voltages appear normal (cycling) and the downstream voltage is tracking the upstream O2 voltage then your cat is bad. 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 ...