Hi all , '02 Grand Prix SE, 3.1 . seems to have no power under a load or under accelleration. Idles great and starts right up. I replaced MAF, new ICM,EGR,muffler,air/fuel filters. Cat conv seems to be flowin good, less than 3lbs back pres on exhaust. Fuel pres never drops below 50 lbs. even under driving condition and when its acting all crappy. car has jus over 109k miles, lookin at the sparkplugs , looks lean, white on plugs as well as inside the cat, looked slightly white like it was runnin lean. not sure where to go next, anyone have any ideas??? btw, not the trans. thx again