car sputter when warm runs fine cold

[mitsubishimanic]

ok lets start by saying i did a boost leak test already and have a slight leak at my idle adjustment screw its tiny and that is my only leak. so on to the problem i can go out start my car let it idle for 5 mins and drive off and it runs perfect boost hard and no sputter or any thing. but once it is fully warm it starts sputtering its not really noticeable outside of boost. but when i do get on it it will build boost but not really accelerate like its holding itself back, then it will go, and then hold its self back. kinda feels like its pulling timing .my plugs are new ngks gapped to spec. new ngk plug wires.

i was thinking fuel filter maby. any way i will be testing some things out just looking for a little input on ideas on what might be going on. unfortunately im am in a different state then which i live so i dont have my logger or any thing so this will be fun. im hoping to figure this out before sunday cus i have to drive the talon 300 miles and over 2 passes to get home. so any help would be awesome

 

[GSLENK]

What is the 2g turbo in your profile? 20g? and what pressure are you running? it is very possible you are simply over running the 450s. I quickly ran out of injector on my pte 680s with a 20g. and by run out, I mean near 80% idc.

 

[mitsubishimanic]

its a factory td05h running about 14 psi. im running 2g 450cc injectors. my car is an auto awd it came with a tiny tdo4 turbo and 390cc injectors.

any way i replaced my fuel filter and it seems to have fixed the problem. the reason why i though it was my fuel filter is because i have had my car for about six mounths and never let it get below a quarter tank. well a week i let it get down till it was right on E and thats about the time my wife said it was acting funny for her on her way to a doctors apointment and it just got worse from there. any way im going to do some running around and see if it does it again.

so far so good still.

 

[mitsubishimanic]

ok not fine clogged another fuel filter checking the pump tomorrow.

 

[GSXturboSPOOOL]

this may sound dumb, but check your spark plugs. they could be causing a misfire which makes you putter at higher power output. if not i would check your fuel filter and fuel pump. Could just be lack of fuel getting to your cylinder during acceleration

 

[camas90gsx]

Did you just get the car recently? Anyways.the reason im asking is because when i got my first dsm it had 85k miles on it and obviously wasnt driven much in the previous years before i bought it,and after 200 miles it was bogging out during hard acceleration,so i changed the fuel fiter and it helped for a minute.Then when i went to E-85 and it happened again. It turned out that i had so much crud built up in my gas tank and lines that i had to change my filter every 3k miles or so because there was that much shit built up. Idk,just a thought

 

[mitsubishimanic]

turned out to be the fuel pump took a crap. thanks for all the help.