When that happened to me my mechanic told me that my fuel pump relay shorted and burned out my fuel pump, so I had to get them both replaced, he's a pretty good mechanic, he told me no need to replace the other fuel pump. In my case it was the primary fuel pump.

If the fuel pump is OK it will buzz for about 3-4 seconds after you turn the ignition on, providing that the car sat for a while and the fuel line pressure is lower than it is neccesary for the start. Again, after the ignition is turned on, the fuel pump, which is located under the rear right floorboard, will buzz.

If the pump is OK, it also could be the OVP relay.

Yes, but do that individually to each pump as I still heard one of the pump and went on to the next thing like a fool. Th e fuel pump relay is behind the battery, and the OVP if needed is in that area too.

I have the same problem. MY car sometimes dont want to start but does turn over. Turned out to the be fuel pump relay. at the dealership they want $209 for it =\

get the relay from ebay for like 30 bucks.