Unveiling the Secrets of Normal Sensor Readings A Step-by-Step Guide

Ever since I've owned the car its also felt sluggish compared to my 2010 318D. Does anyone know if this MAF reading is normal? Thanks! Sam. 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 ... The wave form looks normal. It is averaging the fuel mix, and not stuck rich or lean. Did you install aftermarket cat, possibly a higher restriction. WHAT IS NORMAR READING UPSTREAM OXYGEN SENSOR IN MILLIAMPS ON MAZDA SUBARU HONDA TOYOTA If you are trying to see the normal reading for ... Normal Fuel trim Oxygen O2 sensor values NA Engine (non-turbo) / Drivetrain / Exhaust Modifications. The map sensor should be reading 16 to 20 in hg. What makes you suspect a lean condition? Normally a MAP sensor compensates for vacuum leaks. O2 sensors should cycle continuously between 0.2v to 0.8v and back to 0.2v about once per second. 2.67v isnt right. Could be a vacuum leak, ... My MAP pressure is around 11 in/hg at idle. Not sure if that's right or not, but my car is running super lean. When I often see a more or less constant reading on those tools, I expect the DME to be upset, yet it often isn't. I expect to see readings ... ... sensor is properly detecting the PCM's normal, frequent fuel mixture alterations. For now, forget about the downstream O2 sensor ("B1S2").