Edit: Problem Solved. But Read on if you want.
As of yesterday, when I try to accelerate hard, the engine stutters, or if really pushed, will stall. This problem normally occurs at 5k rpm but will occur sooner if I push it harder. And it only happens under load. When it does happen, it feels like I hit a wall (is that fuel cut?). I have no CEL and out of precaution, i checked to see if there were any codes w/my Cobb AP and no codes were found.
Common sense says that it is either a Fuel problem or an Air problem, but I could be wrong.
I have a Cobb AP and a K&N drop in filter. I changed my fuel filter at 45k and my spark plugs between 45 and 50k to copper NGK BK6RE and paid very careful attention to their gap. I am at 57k now.
I took the Cobb AP off (flashed back to stock) to see if the problem was still occuring. The problem persisted, but not to as great of an extent. So I put the AP back on knowing that it is not the reason.
The problem occured with about 1/10 full tank of gas. I then filled it and the problem persisted. ... Looking at my gas reciept from the 1st, it says 2.57/gal... was premium that cheap in NJ? NJ pumps your gas for you for those that don't know. I payed 2.74/gal, so I know i got premium this time around...
Could my fuel pump have gone? Could my ignition coils have gone bad already? Is my MAF dirty (would that cause a CEL to light?)?
Any suggestions are greatly appreciated.