Originally Posted by
dogg2k78
I have a 99 Civic Si and when I accelerate the car the car sputters and doesn't want to go anywhere. When i just feather accelerator the car drives fine. Under 2000 rpms is when it is the worst. Also what has happened lately was when i fill up the car the car struggles to start and I have to hit the gas to start the car.
well having to hit the gas to get it to start is a symptom of flooding.
seems to me like you have a fueling issue. are you running real rich? black smoke? are your injectors leaking? WHAT SPARK PLUGS ARE YOU USING? what else has been done to the car? turbo? fuel pump? have you tried switching back to the stock ecu? i need some more info if i am going to be able to help you.