The problems begine when I put my Mazda out of the underground parking week ago ...and after a rainy night I tried to start the car in the morning but it failed to start ... well, after several times trying, may be ten or twelve times it started normally as if there wasn't any problem in it and it appears to be normal the whole week after, but after another rainy night I tried to start in the morning but in vain battery is good , I 've changed the crank sensor and it didn't work ...but suddenly again it worked with nobody knows why and how ... I'm so afraid that it might cause me the same problem since nobody knows what the real reason is... any one can help?