I have a 1984 fiero it runs rough after I take off and once in awhile it seems to loose hp while I'm driving not all the time runs better at night. I've Changed pcv egr spark plugs and wires
Since you have a pre-1996 you can get some diagnostics, without OBDII Check out this page: http://www.calgaryfieros.com/OSGdocs/codes.html also .. http://www.youtube.com/watch?v=lKzaCX4t7Lw
Looking for a Used Fiero in your area?
CarGurus has 81 nationwide Fiero listings and the tools to find you a great deal.
Search Pontiac Fiero Questions
Pontiac Fiero Experts