i know there was about 3 or 4 things recalled on the fiero that ya might want to look in to also if you buying a fiero some possibl good pointers to replace parts ill just post them
1984 PONTIAC FIERO ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
Recall Date: 12/28/1989
Summary:
DUE TO AN INTERACTION OF THE ENGINE COMPARTMENT ENVIRONMENT AND MAINTENANCE OR SERVICE RELATED FACTORS, THERE IS A RISK OF ENGINE COMPARTMENT FIRES.
Consequence:
AN ENGINE COMPARTMENT FIRE CAN SPREAD TO THE PASSENGERCOMPARTMENT AND INJURE OCCUPANTS.
Remedy:
CORRECT OR INSTALL NEW ENGINE COMPONENTS TO PREVENT UNREASONABLE FIRE RISK.
Potential Units Affected: 244000
Notes: PONTIAC FIERO
1984 PONTIAC FIERO FUEL SYSTEM, GASOLINE
Recall Date: 05/19/2006
Summary:
CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURED FROM OCTOBER 18, 2005, THROUGH MARCH 21, 2006, SOLD FOR USE ON THE VEHICLES LISTED ABOVE AND ON CERTAIN SCHOOL BUSES. (TO SEE THE SCHOOL BUS ENGINE SIZES, CLICK ON "DOCUMENT SEARCH" AND THEN "BUS APPLICATIONS"). THE CONNECTOR ON THE FUEL FILTER WAS NOT MANUFACTURED TO HONEYWELL'S SPECIFICATION. AS A RESULT, THE O-RING MAY NOT SEAT CORRECTLY ON THE FUEL LINE.
Consequence:
THIS CONDITION MAY CAUSE AN INADEQUATE SEAL AT THE CONNECTION, POTENTIALLY LEADING TO A FUEL LEAK. IN THE PRESENCE OF AN IGNITION SOURCE, A FIRE COULD OCCUR.
Remedy:
HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN DURING MAY 2006. OWNERS MAY CONTACT FRAM CUSTOMER SERVICE AT 1-800-890-2075 (OPTION 1).
Potential Units Affected: 88303
Notes: PONTIAC FIERO
1984 PONTIAC FIERO PARKING BRAKE:CONVENTIONAL
Recall Date: 04/11/1991
Summary:
PARKING BRAKE ADJUSTER FAILS TO OPERATE AND DO NOT WORK AFTER BRAKE PAD WEAR.
Consequence:
PARKING BRAKES WILL NOT COMPLETELY HOLD A PARKED VEHICLEWHEN PARKED ON A SLOPE, CAUSING UNINTENDED VEHICLE ROLLAWAY WHICH COULD RESULTIN A VEHICLE ACCIDENT.
Remedy:
REPLACE NONFUNCTIONING PARKING BRAKE ADJUSTERS.
Potential Units Affected: 179036
Notes: PONTIAC FIERO
1984 PONTIAC FIERO ENGINE AND ENGINE COOLING:ENGINE
Recall Date: 12/01/1987
Summary:
DUE TO AN INTERACTION OF THE ENGINE COMPARTMENT ENVIRONMENT AND MAINTENANCE OR SERVICE RELATED FACTORS, THERE IS AN UNREASONABLE RISK OF CONNECTING ROD FAILURE AND ENGINE COMPARTMENT FIRES.
Consequence:
AN ENGINE COMPARTMENT FIRE CAN SPREAD TO THE PASSENGERCOMPARTMENT AND INJURE OCCUPANTS.
Remedy:
CORRECT OR INSTALL NEW ENGINE COMPONENTS TO PREVENT UNREASONABLE FIRE RISK.
Potential Units Affected: 125440
Notes: PONTIAC FIERO

ive already looked in to replacing alot of this i know on my 86 fiero the parking break dosent work and the fuel pump was recalled as of what it says up there ^^^^ i replaced it and found the problem with my fuel tank i also know that you should look in to finding a way to sheald the wiering harnis if you look at the 2.5 4cyl engine you can see that the wiering harnis in the back of the engine is really close to the manifold and the most hottest spots on the engine bad idea lol just a few heads up thow from what ive learned