Do anybody can tell me what is wrong with my car; First the engine light was on the my mechanic said that I need to change the cam shaft sensor I went to the dealer and I bought it but when he put the new sensor the VSA and the Triangle light came on so he suggested me to change the other 2 sensor the other one from the engine and the one from the transmission so I did that now I have 3 new sensors and the lights are still on. so my mechanic sent me to a electrician and he checked the car and found out nothing wrong; when I drive my car I do not feel anything wrong. Do anybody can tell me what is wrong?