Wierd, if u hold the headlight switch in the middle all the lights will work, but if u puch it all the way up i have no parking lights or taillights...only headlights. Ive replaced the switch and same deal...any advise???

Also, the headlights wont go down...checked fuse and its ok but they will go up but not down.

Chances are the ground connections are poor. With out the headlamps on, there's enough of a connection to lite everything else, but with the headlights in play the electricity prefers the easiest path to ground and ignores the other lights.

The headlight motors are a issue of damaged wiring or the limit switches in the actuators have failed. It's pretty common to see this. 85 Fieros will have one-piece non serviceable actuator assemblies, which can either be replaced with the same or upgraded to late-style actuators, which can be rebuilt in the future.