I went in for a tune recently and my car kept cutting out at 4000 rpm. I had just had a walbro 450lph installed with no rewire kit with bigger gauge wire. My tuner suggested a rewire with bigger gauge wire and said that if the rewire didn't work then it may be a defective fuel pump. Has anyone run into this issue or ha e Amy other ideas?

 

it depends on the mods to your car? not enough information here. what injectors are you running? e85 or pump?

 

I have a gt35r, twin scroll dual trial wastegates, tial bov, full race turbo back exhaust, fuel lab fuel pressure regulator, 1450 fuel injector clinic injectors, devils own water meth kit, Perrin 4 in intercooler, ets short route ic piping, 91 octane, I can tell it has cams but I'm not sure what brand

 

is it all stock fuel hoses and rail?

 

It has ams fuel rail and -6an SS lines going to the fuel rail and the return line. I had the fuel pump adjustable fuel pressure regulator SS lines and fuel injectors all installed at the same time.