This B23F non-turbo, 205K miles, will generally start and run firts thing, but after driving a while then parking it, say, to check out a piece of real estate, it will not energize the main fuel pump.

It has two fuel pump relays. A white, cube and an elongated black plastic relay.

I hear and feel the black relay click when I turn the key to "Run". No fuel pump sound.

When I turn the key to "start" position, however, the white cube relay above the balack one operates intermittently. When it does, I hear/feel it click and also hear the main puel pump operte for a second.

Only in this condition will the engine will start.

A different relay didn't solve it. sometimes, I can squeeze the white relay and get it ti click. I see nothing broken in the harness at the relay end.

Following the harness out to the engine bay, I see the PO spliced is into the gray plug one the firewall. I figure his old harness had rot there, so, he cut off the gray plug and spliced on a better one. The butt connectors there all seem tight and dry.

The no-start condition also seems related to heat. Cold, the car starts.

Warm, the relay won't operate.

I had been getting by with rapidly turning the key on/off as this seemed to nudge the relay. (and I could hear the main pump). Lately, it seems t reqire a periods of "rest" or cool down before it will click and start.

The harness on the ignition switch seems plugged in OK.

Finally, sometimes when I take the key out of the ignition, it still chimes as though I am leaving the car with the ke left in the ignition.