| Ever since I purchase the car, it has always had difficulties starting cold. It seems to be getting worse though, and I don't want to break my starter. The car has the old style 555 Nismo Injectors, single pop, genie exhaust, and JWT chip. When the car finally starts, you can smell unburn fuel. My rear bumper is starting to accumulate more black dust from the exhaust. I had the fuel pump replace a while ago, but it still makes a buzzing sound. I also replace the fuel filter. I thought that it may not get enough fuel at the begining, and when I keep cranking the engine then I have too much fuel. I wounder if the problem could be my fuel regulator which may be straining my pump and potentially explaining the fuel pump buzzing sound as well? My other theary is the cold start, but I don't know where this part would be located? Any suggestion and/or advice will be appreciated. Thanks
Jesse
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