doubt this is it, but a guy i know w/ a civic had this problem: car would sometimes start and then shut off or not even start problem: bad battery cable.
98.5 SVT
91 Escort GT (almost sold)
96 ATX Zetec (i brake to watch you swerve)
FS: SVT rear sway bar
WTB: Very cheap beater
CEG Dragon Run - October 13-15