In case of accident or rollover, the relay will turn off the fuel pump. Same when the key is in posII and engine not running. That is what 31 and 31b are for, to communicate to the ECM.
Find a better wire than a paper clip if you are going to travel for 30 minutes or so. You don't want to hit a bump and have the clip fall out! A short section of 14/16 gauge house wire comes to mind.
What happened to you with the short start is it ran out of residual fluid in the rail. Your injectors are OK. Then it took a while to push the air out of the line and fill back up with fuel.
Order a new FP relay and keep on rolling.
Klaus
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