New to the forum, but have a question. I have read many threads on this, but still not sure. I have a 77 930 and do not have any fuel pressure. The car runs fine when I bridge pin #87 and #30 in at the forward fuse box (both pumps operate). I have seen treads stating that the overboost switch relay is bad. According to the parts manual, this car does not have a overboost switch relay (if it does, where is the location). What am I missing?