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consult doesnt show AFR. it can show a rich/lean register, but this is useless for tuning. the "AF Alpha" etc value are just the ECU's internal correction for cruising, etc, and also are relatively useless for tuning
ecutalk would be useful to log data like injector duty cycle (ie, how long the ecu is holding injectors open) vs rpm, AFM (despite afm being corrected by piggyback), but one of the main components you need is a wideband O2 sensor to obtain the real AFR, and a way to log this (eg dyno's by nature log this).
consult is mostly useful for monitoring rather than tuning, but it has its uses in tuning, mainly to check resulting injector duty cycles, and comparing these to AFR to determine whether injectors are maxing out (likewise if AFM is maxing out)
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