ok so i have a stock JDM itr motor and its been running fine for the past year and a half. all of a sudden these past two days it idles low and wants to stall. another thing is when i fill up the car at the gas station it doesnt want to start (since i've had the motor), it takes a couple of cranks to start it. but after the fill up and the first start all the other times it starts up fine until my next fill up.

what could it be? a clogged cat? fuel pump failure? i recently changed my fuel filter. needs new cap and rotor? spark plugs? wires?

TIA

 

sounds like either fuel pump or u have a dirty fuel filter. try those. check ur spark plugs and see if they are fouled but it does sound like a fuel problem.

 

def sounds like a fuel problem.

how far are you letting it go before you refill the tank?

but yeah, could be a pump.. maybe injectors or somethin.. not 100% sure on this

 

thanks

i'm guessing its the fuel pump too. let it go till about 2/5 of a tank? but why would it have a hard time starting only after a fill up? all the other times there is no problem