EvilSRT

My gf recently washed her engine bay without the car running. Prior to this the car would start up fine every time. Since then, it has a mind of its own on when it wants to start. Most days it starts up fine. Other days, it cranks, but wont start. The strange part about it is. After crankign it, if you leave it alone for a few hours and come back, and crank it over, it will usually fire rite up. I'm lost at this point on what it could be. I'm gonna change the fuel filter today just for kicks. If anyone has any ideas, let me know.