I have a '95 legacy wagon which has a peculiar problem. 9/10 the car starts just fine but once in a blue moon when I go to start the car the fuel pump won’t turn on and the engine will get starved of fuel and shutoff immediately after starting. Turning the key will not turn the fuel pump on and you have to wait about 20-40 minutes after which the fuel pump turns on with the key and the car starts right up. Once the car is running the fuel pump never has an issue, it just won’t turn on at start occasionally.
I’ve replaced the fuel pump relay and cleaned out the connection to the fuel pump itself to no avail. I can’t imagine the fuel pump is failing because the car runs like a dream once the pump turns on and its never failed while operating. It simply doesn’t turn on at start occasionally. Today I ran into the problem, waited 20 minutes in the parking lot and it started working again. Drove the car home, shut it off and restarted it immediately and the fuel pump didn’t turn on.
I’m at a loss so if anybody has had this problem before or a hunch about fixing it please let me know.