I've never found Vf to be all that useful for tuning. It's a decent diagnostic aid but unless you're trying to maintain a stock tune it's not really helpful. Setting it up is easy enough, you wire the Vf pin to one of the MAFT Pro aux inputs, set the Aux In parapeter in the MAFT Pro's CFG Settings menu to 0 and then in the SensorMonitor you set one of the four monitors to Ax1 to see the readout (0v to 5v). You'll need to define the input in TunerPro if you want it to show up in TunerPro's logs.
__________________
If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum.
If you're so inclined I'm always more than happy to accept tips via PayPal. 
Tip Jar ---> 
|