Read my post here: http://www.impalassforum.com/vBulletin/showthread.php?t=336177

The sputtering sound on the right rear of your motor is likely a broken exhaust manifold bolt - common on these cars. Search the exhaust section 'stickies'.

More hints
http://s368.photobucket.com/user/TheFooserGuy/media/ImpalaTuneUp-1of2.jpg.html?sort=3&o=59

http://s368.photobucket.com/user/TheFooserGuy/media/ImpalaTuneUp-2of2.jpg.html?sort=3&o=60


Also, go to 'User CP' at the left end of the blue bar above and add an approximate location (NY, LA, STL) in case their is someine in your area rhat might want to help.

HTH
.

 

would that cause loss of power? an idling rough? i looked back in there last night an it seems kinda wet wit oil leaking from around there

 

You looked back in where?...You need to include as much info as possible, we suck at mind reading...at least I do. I bet you have several things going on. Did the fuel filter get changed with the pump? Before you screwed with the fans did they work as they were supposed to? How did you know the MAF was bad? Might have just been dirty. Sounds like you have the infamous broken exhaust bolt on the drivers side, The last one back by the firewall. If that is where you looked and saw a bunch of oil then the rear of the intake is probably leaking.

 

Why would you take it to be smogged when it wasn't running right? You do know what a hassle it will become if it fails a couple of more times, don't you? Make sure it is right before going on record again of another failure with the DMV. Put the fans back in correct working order. Good luck.

 

ok so heres todays update i took it to a mechanic an we found out that sparkplug number 3 doesnt have a spark so threw a diffrent wire in there an still no spark so i went to spark store an got a new rotor an cap an they gona do the labor for 200$ tommoro morning so i guess theres the answer for my misfire now with the oil leak havnt found where its coming from yet can tell if its from the vavle cover an leaking down to exhaust manifold or if its coming out the exhuast manifold now would that oil leak have anything to do with my performance cuz ima be pissed tommoro i had all that labor done for the distributer an its still running like crap

 

an also i took it to get smogged because after the fuel pump replacement i wasnt aware of the other issues it wasnt running as bad as it is now so i smogged it so i can register the car in my name it didnt hurt nothiong smogging it because it did pass

 

what were the results? was it the cap and rotor?

 

One might speculate that the "misfire" was due to insufficient punctuation - The data stream is not being properly interpreted by the central control unit.