ran good until couple days ago its a ls vtec turbo stock injectors stock fuel pump p72 ecu stock...it runs good but when u press the gas kinda fast it bogs down then revs it didnt do it until couple days ago..already checked injectors and cleaned them changed tps and map sensor and done put like 3 different distributors in and it still does same thing new wires sparkplugs to...anyone got any idea wht it might be? was supposed to go get tuned this weekend but i got to get this fixed now

 

You need aftermarket injectors (get some DSM 450s they are like 100 bucks) also get a walbro 255 they are cheap too like 100-120, then get it tuned, see how it runs then, i bet its waaaaaaay better

 

i have 255 pump and dsm 450s but im not puttin then on untill i take it to get tuned...it did run fine and really good but now it just wants to cut out when u press the gas fast like it bogs for a sec then revs...it didnt do it before a couple days ago ago

 

You need a tune. That is your problem. Not feeding enough fuel for your motor

 

but y did it run good and didnt do this before?

 

it only running 6 pounds of boost

 

like said above put pump and injectors in and be done with it. shouldnt have any problems.

 

thanks for input peoples!

 

Wrong he still needs a tune even with new injectors and a new pump. A car will run fine while the engine is cold because it idles higher and is burning more fuel. Once it warms up and the ecu goes into closed loop then it will start to run like **** if it does not have a tune. The ecu will not read the new injectors unless it is corrected on the ecu itself by a tuner.

 

it was the missing link!!