Trouble shooting FI double relay

[BammBamm]

I think my double relay has gone bad. It won’t start the fuel pump from the run spot on ignition. From the diagrams it appears the fuel pump part should engage from terminal 86a and 86b. Does that mean there should be continuity between the two?

[18Fiatsandcounting]

(Bamm)^2, there's a pretty good document on diagnosing the dual relay, and if you PM me your email address, I can email it to you.

-Bryan

[spider2081]

It won’t start the fuel pump from the run spot on ignition.

For the dual relay to power the fuel pump with the ignition switch in the run position the flap in the air flow meter needs to be open.

Dual relay terminals 86a and 86b are connected together through a steering diode and a fixed resistor. I think to get any continuity between the pins the meter would have to be set to Diode check and then it might indicate with the red meter lead on pin 86a and the black lead on 86b. Reversing the leads the meter should indicate an open circuit.

My experience has been the female pins in the dual relay loose their tension and become intermittent more often than the relay fails.
Unplugging and plugging in the relay a few times often gets it working again.