Quote: Originally Posted by selp
this gauge can read air/fuel ratios right? ..
so there is no need for a wideband?
This gauge reads the stock O2 sensor voltage, and you can use this reading to estimate the A/F ratio. The gauge also has auxilliary inputs which can be used to monitor a wideband sensor. A separate A/F gauge is not really required, but you may want a wideband sensor for accurate A/F readings.
