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If your car cuts instantly dead, and rolls to a stop, rather than cuts slowly like running out of fuel, there should be a code set in the ECM.
Can you get a scan done on the ECM, and the whole car if that is possible?
I can't see that one code causing your issue.
Can you swap the EFI relay with one like high beam etc?
I would recommend you take it to Ford, or a good mechanical workshop that has seen this before.
I have had many customers cars do this, where you may drive it for 2 days, and then just cut out, one took 2 minutes to fix and no parts to replace.
Hope you get it sorted soon.
I hope my advice has been of assistance to you.
Have you had any success with your car problem?