Quote:
Originally Posted by KnifeKnut
Couldn't I get a good idea as to what the Fuel air ratio is doing by looking at the oxygen sensor voltage? I really would like the added gauges when I upgrade to a newer Honda. Also, unless I am going for maximum power, I do not need to know the fuel air ratio if I am getting a calculated mpg reading, right?
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Unless you've got specific plans otherwise, the AFR will just flash back and forth around 14.7. It's of limited use really as that's what the ECU is for. The only possible gain is you would know exactly when fuel enrichment is occurring, but that's less important on a NA engine - you'll probably find the open loop indicator is all you need.
SGII does perfromance measurements and reads "ability to access manufacturer parameters, if manufacturer codes are known", they call it Xgauge.