Quote:
Originally Posted by Green7mgte
the safc allows you to monitor to an extent and adjust the value.
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It may allow you to see what airflow signal the ECU is getting from the meter, but it doesn't tell you at all how much fuel the ECU is actually delivering or how your changes are affecting it. You could always monitor the Vf feedback, but it's pointless in any setup that's remotely close to stock as it only provides feedback for closed loop operations and under certain rare conditions at WOT.
Portable wideband is the way to go as it allows on-the-go tuning. Get it close and dyno for for fine tuning if needed thereafter.