You resoldered the connections on the OVP relay or the fuel pump relay? Never heard of that on the OVP before.
Did it have a fuse on the top?
I discovered the resoldering trick after living with the problem long enough that the car finally gave up completely. Hadn't heard of it before, but it seems common.
2.5-16v 1990 90,000m Astral Silver
2.0E 8v 1986 107,000m Black