Car is Sputtering
 

ok today i was coming home from work and i was at 65mph and i dropped it in to 4th to pass on the freeway and then put into 5th at 80mph and the car started hesitating and sputtering it did it a little bit when i was accelerating now it does it all the time. it sputters now when i take off all the time and i didn't see any vaccum leaks, i don't know if it could be the valve cover gasket leaking into the spark plug holes, or if i need bigger fuel injectors.

my mods to help you out:
3in full exhaust from turbo back
cooleeze intake pipe and radiator pipe
blitz bov
intrax lowering springs
tokico shocks

can anyone help shed some light on the situation thanks in advance.

Any codes? Whens the last time u changed ur spark plugs and wires?

I could have swore I posted plugs and wires yesterday.

see thats what i was thinking too that it could be the plugs and wires but i haven't pulled the plugs yet cuz it was too hot and i have a car to drive for the time being. there aren't any codes, and i didn't see your post about plugs and wires sorry.

if your valve covers are leaking, it is most likely leaking oil right into your spark plaugs causing the sputtering.

When My car started sputtering it was the connection on my TPS coming loose. The locking tab is broken on my harness which is falling apart.
Im definately going to get a good one on vacation to bring back and swap.
If your certain about your vacuum, put a vacuum tester on the car anywayz just to be sure on the T connection behind the intake manifold and see what it does.
This is a pretty good idea of what you will see when you put the guage on and basic diagnosis for the readings.
http://autorepair.about.com/cs/troub.../aa112401a.htm

ok just to update i bought ngk plugs and wires from ebay and i got it yesterday and started to replace them and notice the wire on the 6 plug was a little messed up and loose so i replace everything and the car is now running stronger than ever. thanks for the help.

your gas mileage will jump up too. when mine was sputtering i was getting 17 mpg and after the NGk plug wires on i jumped up to 22 mpg :)

I went with MSD wires..

I thought about the NGK's.

I think they are both good sets.

Ok... well i was having the same problem... i changed my plugs and did all that garbage jobs trying to figure it out... so me and my uncle took it down the highway and he told me to open it up.... with over drive on... so i did... the car jolted horribly in a sputtering scense then i let off and he told me to take off over drive so i did and floored her again... this time the hesitation was still there but at a minimum... turns out my head warped... so i got gunk block sealer... lotta bull shit work again... draining the rad 8 times with cleaners than gunk but.... i let it sit for the required 30 mins when i was done... fired her up... car ran better idle was 600-650 rather than my normal 900-1000... gas mileage feels better car sounds alot quieter and most importantly i can floor her again without the sputter... this stuff totally fixed everything... its only a quick fix but my uncle says he using it on his race cars and its amazing stuff can last anywhere from a year up... give it a shot if u have the time... and around 80$ for cleaner gunk and antifreeze!.