I need some help figuring out a problem. I have a 1jz swapped 240sx and the car has been running really strong and great. I went to go for a drive the other day and now the car feels weak. I have a singled 70 trim turbo and stock map and everything else and a apexi neo for future tuning. The turbo (when I hit the throttle) sounds like a cold air intake from a n/a car very loud. The boost still reads fine but it felt weak so I turned it up and it hit 20lbs on a stock map ans no fuel cut just weak power. Can anyone help or point me in a direction?????? There are no boost leaks btw. Thanks for any info