Sensor Optimization A Deep Dive into Normal Readings

Normal Fuel trim Oxygen O2 sensor values NA Engine (non-turbo) / Drivetrain / Exhaust Modifications. Oxygen sensors will run from almost 0 volts up to around 1.1 volt. I'm not sure why it's reading over 2 volts, but some aftermarket diagnostic tools can be a ... 1999 - 2006 (GMT800) - MAF sensor reading - I'm trying to diagnose my maf sensor. I conducted a test w/a DMM and the voltage was 1.96 I then ... 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 ... Rich is normal if you took those readings at idle, but that's quite rich for a warm cruise. Was this on a really cold day with very low ... With the engine fully warmed up, Bank 2 post cat sensor outputs a steady 0.7v at idle, but bank 1 is giving unusual outputs. Sometimes it will ... When I was graphing the front O2 sensor the voltage readings were steady around 18000. ... Was car already at/past normal operating temp (ramp-up)?. Generally speaking, yes. Conventional O2's in an upstream position will switch. Downstream sensors will USUALLY hang around 600-800mV if the catalyst is ... Typical maf readings on any car is between 2 and 7 at idle higher than that indicates an issue but is relative to rpm. The higher the rpm the ... The downstream sensor seems to be bouncing around and it should be relatively stable at a low voltage (lean) since its job is to measure stored oxygen in the ...