Thw 92's ecm does not appear to have the very problematic 14 pin connector that plagues some earlier ECM's, but part of the reason that connector was so problematic was the wire bundle weight along with pin and barrell length would put enough leverage on teh solder joints on the circuit board that the solder joints would break and very intermittent stalling issues would get less intermittent.
So you might want to see if simply wiggling the wire bundle and connector at the ECM, with the key to on, not start, causes relays to click on and off.
If so, then some Zip ties hoding the wires in a certain fashion will allow you more time to search out a new remanufactured ECM, or to find someone willinng to try and resolder the connectors pins on the circuit board inside the Unit.
Also the mere presence of dielectric grease in that connector does not mean it is unoxidized and not the issue.
most contact Cleaners do nothing for oxidation on the conductive surfaces. Caig DeOxit d5 is magic electric juice with no equal, and 2nd place is very distant.https://www.rockauto.com/en/moreinfo.php?pk=27155&cc=1073685&jsn=427
make sure the new ECM's wire bundle/connector cannot exert stress on the connector.