Sounds like what happened to my R34.
How is your fuel economy and acceleration? If your acceleration is feeling sluggish and your getting worse fuel economy than normal then its definetely a misfire in one of your coilpacks.
OP, check out my 2001 S2 R34 GTV up for sale.
http://www.carsales....aspx?R=11445518
Its manual, includes a RWC and has only traveled 88,000kms.
Bit out of your price range, but if interested let me know.