That's cuz pistons fire twos at a time. But it will only run RITE if plugs r rite. So u get misfire on X cylinder, you got plugs wrong, computer sees it all wrong, car not running rite.
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