Unveiling the Power of Normal Sensor Readings

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 ... As a forme ASE certified automotive technician, this is the best simple explanation I have seen in a very long time. ... sensor 1 was reporting very erratically in comparison to the O2 voltage reading on bank 1 sensor 2. Does anyone know if this is normal ... 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 ... If the upstream O2 sensor voltages appear normal (cycling) and the downstream voltage is tracking the upstream O2 voltage then your cat is bad. ... 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 ... I'm having problems with my map sensor It's reading low. My map sensor reads 26 in hg and baro reading 29 in hg key on engine off. 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. Depending on the normal range of a sensor, there are certain values that can indicate sensor or other failures like an open or short. (For ... 110-145 is generally considered a normal range. For both of the fuel trim multipliers: A count below 128 is a lean command which means the ...