Sue Taylor

Hi my FRV won't start once it's done a run. It starts 1st thing. Then I drive to a destination and park. When I go to leave, it won't start again. Ive had loads of checks to the engine but nothing can be found. I've had all new filters fitted, new oil change. I've also spent out on new battery, starter motor, 4 new injectors even. Still same problem. Its cost me a lot of money, which I've spent cos I like the car. But I still can't find the problem to get it fixed. Any ideas please?