Quote:
Originally Posted by parasailsam
How and what do I use to check afr's?
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Wide-band Oxygen sensor, Google should get many hits. "Normal" range of mixture on a 930 can easily defeat a narrow-band sensor.
Innovate's LM-1 is a basic readout of mixture, but you can add boxes to log additional information like boost, RPM etc.
Zeitronix is another brand.
You can get a check/baseline on a rolling-road dyno, but this isn't the same as "real" driving.
Personally, I can't imagine trying to watch RPM, boost, AFR and traffic. So I think in-car gauges are bling, and think you need to log the results for later analysis. YMMV.