Considering an O2 sensor and I don't think I just want a gauge to look at. I think I'd rather have something that I can use with a TPS so I can look at and graph throttle opening against A/F ratio.

Is there something out there? I thought Innovate had something but I don't see it any more. Or am I better off looking at something an RPM on board data logger?

Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston