hey all, got a bit of a problem, i have a s2 r33 running cooler, turbo bak exhaust, pod filter. recently i changed the fuel pump on it for a bigger size (040 equivalent). since doing so, the car has been running extremely rich and also when i give it fill throttle, the boost seems as if it is spiking and it cutting out causing the car to run like hell..
any ideas what this could be, its confusing to explain but it almost sounds like the car is bouncing off the limiter and makes a popping noise and cuts out when i giv it fill throttle..
any ideas would be greatly appreciated. thanks
Michael