Not sure is the same is try on an 88 but I think it is. There are two poles on that relay and jumping the pumps only sends power to just one of those. The other side of the relay sends power to the AMM and if the AMM does not have power your car will not start. I have the dang merit badge by the way from my 86 model.

If you don't have a known good relay try this, take a couple of 14 gauge wires three to four inches long and crimp them together in a yellow female spade lug. Crimp a female lug on each the two other ends. Pull fuse 4 and your relay out, then insert the double crimp lug into the Red wire (30) in the relay socket. Put the other two ends in 87-1 (orange brown) and 87-2 (Yellow Red). I have a switch wired in so you can turn the connections on and off like a relay.

When you push fuse four back in the fuel pumps will be humming away, give the key a turn and see if she fires up. If yes get a new relay, if no it was worth a shot.

Good Luck,

Paul