i have a ramdom missfire on a 97 gst. i have replaced 2 coil packs, plugs, and have msd superconductor wires, i also replaced the maf. im in a nut shell i dont know what could be causing the problen, i replaced all of the ignition system. i been trying to fix this proble for about 6 mounths. now

 

have you checked compression? Correct timing? fuel pressure?
there are dozens of things that could cause a misfire. Why not get it professionally diagnosed instead of shotgunning parts at it.


also, aftermarket wires (like the MSD) are trash. Factory wires are definatly a much higher quality.

 

it is a brand new motor. yes it has the right fuel pressure, ect. o and when u run a msd ignition box (like i am) u need to run their supedcoductor wires. also the stock wires do the same thing.