I have a 94 Impreza that is hard to start when the engine is hot. I replaced the engine coolant sensor, I thought that that would be the problem sence it is a tempature related. When I replaced It I had to refill the radiator. When i was done with that I pulled the car out of the garage and turned off the car and let itsit for a few minutes. I then whent to start it and it would not. If anyone has any information concering this problem please email me at dwwest@ga.prestige.net