An A/F ratio gauge will not be able to assist on anyway with Hondata. A/F ratio gauges is only applicable on WOT (Wide Open Throttle). During your Hondata tuning session, the tuner must hook up a wideband system to get a more acurate A/F ratio reading. However an EGT gauge can assist during the dyno tuning as a secondary or back up to ensure fuel is managed properly. An EGT gauge will also give the tuner a heads up if the wideband is going bad.......
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