Interior Fuel Sender/Pump Connector (Page 3/3)
gjgpff JAN 09, 01:17 PM
It's a sunny morning here in California. The relays arrived yesterday. I removed the old relay, cleaned the connectors with Permatex Electrical Contact and Parts Cleaner and replaced the relay.







The car started up without any issues. I couldn't hear the fuel pump prime or the relay click, but where I was working on the car is quite loud, even on a Sunday Morning. My hearing isn't what it used to be and the dinging of the "Brake" signal didn't help! I let the car idle for 25 min to help charge up the battery and subsequently was able to start the car two more times, again I didn't hear the relay, or the prime. Tomorrow I'll have a helper, (and maybe take the hand-brake off!) to make sure that the relay was the fix and not just that the oil pressure sensor decided to start delivering power to the fuel pump again.

The oil pressure sensor is arriving on Monday so I'll have a backup thing to try. I'll wait until I have the cable to the pressure sensor and replace that along with the sensor.

Things are looking up. If I hear the relay, I'm going to drive the car.

Again, thanks to everyone who helped me with this!

[This message has been edited by gjgpff (edited 01-09-2022).]

Rexgirl JAN 09, 03:23 PM
Thank you for the update, and I've got my fingers crossed that the new relay will get your Fiero back on the road (it should).
IIRC, I never heard the FP relay click in my Mera (though I only listened closely during a check out shortly after purchase and that was over eight years ago), and I'm fully certain it was working.
theogre JAN 09, 03:45 PM
You likely removed grease keeping water out of socket and pins.

Should re-grease them.
OE is "Bulb grease" available in "blister packs" at many local part stores.
or use Brake or Silicone greases.

Often can't hear much noise w/ OE or Replacement F-pumps.
Can hear more when tank is low/empty.