Trying to locate the connector or connectors for the fuel pump/ sending unit where it plugs into the harness. Anybody have part numbers ?

Well, after a bit more searching I found this wonderful site !
https://www.customconnectorkits.com/

Hope it helps someone as well.

If replacing Weather Pack @ C502... You can get most parts @ many places.
Not sure C502 is custom keyed. I believe it made for a "locking pin" to keep both shells lock to each other and often hard to find these...
Example: The shells are mod'ed to take the white part in this called "Connector Position Assurance"

From https://www.tti.com/content...pack-connectors.html
(Aptiv is new name for Delphi that was GM parts.)

But can replace both shells w/ standard 3 position shells.

for connector on pump pickup @ the flange...
See also https://www.fiero.nl/forum/.../HTML/145778.html#p4
The "Universal" one is likely to fit most Fiero.
If you get extra Weather Pack pins... can reuse the shell of C502 and never splice the wires there.

------------------
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)

The Ogre's Fiero Cave

[This message has been edited by theogre (edited 10-22-2022).]

Yeah…my connector is toast. The plastic is literally crumbling. I have two sets coming, wasn’t sure of the gauge of the wire so I got two.
I will post on the outcome.

You can replace just the Shells for Weather Pack connections.

You need a "tool" that's "screwdriver" or other handle w/ small tube to compress the ears on terminals then pull out the back.
Lisle and more make this. Lisle 14900 Terminal Tool for GM
Many sell release tools likely has weather pack tube like https://www.amazon.com/Vign...pin+removal+tool+kit

Don't splice pigtails unless the terminals etc are bad too.
Adding more wire for C502 just makes more issues and easier to snag or hit the exhaust.

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[This message has been edited by MaxxPower1968 (edited 10-24-2022).]