i have a 2000 ws6 with a sts turbo kit. lately its been taking about 6-7 seconds to start the car. i've heard it could be my fuel pump but i just bought a new fuel pump. also when i had it dyno/tuned he told me i was misfiring probably from spark plug wires. i upgraded my spark plugs but not the wires. could that also be a possiblility?