Electric system problem. Help!
 

Hello! I have a problem with my car. When I turn off my car after the engine is hot, and I try to start it again, it hardly start, and sometime I cannot start it. Someone told me to change the fuel pomp, and I changed, but no difference. Can anyone give me a tip?
I have a Gof 3, year 95, gasoline, manual, 1.4.
Thanks