Hey all,
I notice that during hot summer days my car will not start for awhile after driving it for a few minutes. The fuel pump relay doesn't engage and hence no fuel gets to the injectors. If I wait say 5min or so, the fuel relay will engage when I turn the key and the car finally starts.

This only happens after short drives (few minutes) not long ones (20 minutes). It has been this way for years and I've lived with it.

The fuel pump relay is a pain to get to and this situation only occurs intermittently in summer. I kind of doubt it's the relay since it works fine usually. Could it be some other sensor that's telling the fuel pump relay not to turn on?