On the 1984 Pontiac Fiero with the 2.5L engine, the Hall effect switch is located on the distributor assembly. It is typically mounted near the base of the distributor and works in conjunction with a magnet on the rotor to detect the position of the rotor for ignition timing. If you're having trouble locating it, following the ignition wires from the distributor may help you find the switch more easily.
Tom T. Hall was born on May 25, 1936.
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Stuart Hall was born on December 25, 1929.
Monty Hall was born on August 25, 1921.
Natalie Hall was born on 1988-01-25.
Nim Hall died on 1972-06-25.
Hall Charlton was born on 1979-10-25.
Shane Hall was born on 1969-08-25.
Babblewick Hall ended on 1998-09-25.
Hall Pass was released on 02/25/2011.
The Arsenio Hall Show - 1989 1990-04-25 was released on: USA: 25 April 1990
The Arsenio Hall Show - 1989 1990-05-25 was released on: USA: 25 May 1990