i have a 96 jetta when i step on the gas hard or fast the car will almost stall and makes a noise like a flame out of the tail pipe. if i accelerate slow then my car is fine. i notice by the coil that if i step on the gas hard or fast i see a spark so maybe my coil could be the problem but im not sure. and when i start the car it takes a few times to start also having to give it a little bit of gas. so does this sound like my coil could be going out?

thanks for your help