Annoying P1093

Hey guys, for half a year now, I've been trying to get rid of this generic p1093 code. Car runs great though. Fuel economy seems decent too. What's interesting though, is that my generic scanner says something totally different than the other posts I have read about this code. It says "manf. Cntrl fuel& air metering, auxiliary emission controls." So far I have replaced the following..



All four o2 sensors

All spark plugs

Fixed all vac leaks

Fuel filter

Heavy duty air filter with stupid cotton layer under it. Could that be it?



I heard I'm still looking at bad MAF, leaky injectors, or fuel pressure regulator. Does this sound about right or should I start looking else where? Thanks



Ps.. if my obd2 scanner seems to be reading the maf and showing changes when I press the throttle, is it safe to say that's not my problem?









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