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Old thread, but I have found that you can go into "Tune Details", "Controllers" tab, then there is a "<double-click to remove>" for each module. Double click that under FSCM and it makes you re-save...

Heck yes! That's what I was looking for. Thanks!

Is there a central place on the HP Tuners site with all the documentation and instructions for MPVI2, VMC Scanner, VCM Editor?

I just found the "standalone datalogging" pdf instructions in an...

You are correct, but I was having a mechanical problem, i.e. the physical placement of the K&N was causing a screwed up WAY WAY high reading that was not real. I put the factory airbox back on until...

All I can figure is with the K&N direct on the MAF it's directing an out of whack amount of air over the sensor, causing it to overdo fuel to compensate. I put the factory airbox back on, which...

Could having the filter attached directly to the MAF be causing airflow flucuations? Like in this example? http://www.masterenginetuner.com/sensor-signal-integrity---reliability.html

I understand the concept you are explaining, and thanks for the reply, but my numbers are acting OPPOSITE of what they should.

Air filter on = less airflow which SHOULD = lower trims/less fuel. ...

I'm a total noob to HP tuners, but not to engines so here goes.

2000 Yukon 5.3/A4. The only programming change done is to disable the EVAP codes and unplugged the EVAP solenoid on the intake. The...