I am the second owner of a 2000 m5 with 210,000 miles. Recently, the car's power would suddenly cut when stomping on the accelerator. However, I could gently accelerate, but when I floored it, the engine felt like it was cutting fuel. The fuel pump was replaced 15k miles ago. No check engine lights (at least according to my Foxwell nt510 scanner). Car idles perfectly and starts easily. Helpful tips on what to look for next would be great.