hesitation and running issues.

[steveherman]

I am having hesitation issues.
Very random.
Worse when cold... but still there when warm.
I have replaced O2 sensors(ngk)
Spark plugs (ngk laser iridium)
Knock sensors
Coolant temp sensor (oem)
MAF (twice)
TPS (and tested to make sure it is fine and adjusted with meter)
Cam and crank sensors
Intake gaskets
Alternator (maniac)
All vacuum hoses under intake
Fuel filter AND 6 new fuel injectors.

Any one got any other ideas?
Anyone know of somewhere in central Florida I could take it and get reputable service?