I have an ef hatch with a turbo y8 in it. Td04 turbo 440cc injectors walbro pump moto 2.5bar map. My problem is everytime the car sees boost its fine but when i let off the gas and idle the car runs shitty like its going to die and i gatta turn the car off and back on to get it to run good again. No cels nuttin. Any ideas of whats up?