Idle Problem - Yeah.. Yeah.. Same Common Problem... Or is it?

I would reset the base idle using the usual methods. When coming to a stop, i depress the clutch and the RPM's jump to around 1800rpm. At a full stop, the RPM's will drop where I want it- 850rpms but not after hanging at high RPM. The Idle Bypass Valve is clean; Throttle Body is clean; the air-idle spacer thing has no effect. TPS is at 0.98volts and a recent dynotune says that all settings is where it should be.

I've done everything yet nothing seems to work.

I also cleaned the MAF element. One of the elements has a darker color than the other. I use almost a full can of throttle body cleaner on the darker color element but no change. I assume that it's clean despite the darker color.

The idle is irratic and it sounds as if it will die.. almost spurring. At 850rpms the idle should almost be rock solid but this is not the case.

I am suspicious my of alternator, a Power Master (the Black one). I think it puts out 130A. When i turn on my dual electric fan, the overall power drops slightly. Is there a way to test it?

At this point i'm believe that the problem has to be a bad part