Join Date: Mar 2003
Location: Baltimore, MD
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You're not going to get much out of it. The weird thing with these gauges is that the characteristic curves they show in the instructions as being the right type of O2 sensor are narrow-band. So they have a full wide-band range and full sweep but designed for narrow-band OEM-style sensors. Kinda weird, but it should be able to at least show the voltage oscillations.
Stoichiometric (theoretical ideal) is 14.7:1, but realistically, you're good around 13-14:1. Below that you're rich, like 10-11:1 would be very rich. Anything above 15:1 is definitely lean. I obviously haven't had much time to experiment, but I doubt these gauges will be very accurate.
2003 Performance White 6i Sedan, MTX — Used to have a turbo, now pursuing the DD dream
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