could be mate mine was fine like... if you took the lines off and turned it on it turned on and fuel ran so i assumed my pump was good... but i guess the actual pressure wasnt good enough... having said that now that i think bout it if your pump u say is brand knew it could be that your injectors are starting to go that is if its fuel related... do what i did i got a friend with a starlet lend me his pump for like an hr put it in and drove the shit out of it and the car worked fine thats how i knew it was definitely the pump