i have subaru impreza wrx sti 2002 model japan spec
when i start my car its thrortle response is very good but after 1 or 2 minute of running it starts missing between 1000 to 2000rpm
i scan it with deltadash scanner it shows that when car is perfect throtling the fuel pump duty cycle shows 100 percent but after 2 minute duty cycle drops to 33percent and car starts missing please advice me is its fuel pump is faulty

 

no that sounds about right

 

so please advice me what should be the possible problem i can send you the log file