Failure in KIA Model Optima 2007

Kia Optima vehicle failure. The walking vehicle goes out at any speed, sporadically. The fault is random and can pass up to 1 month without failing. The vehicle one does not realize that it goes out and one realizes because by accelerating and visualizing the board all the alert light bulbs. Immediately you turn it several times until it normalizes. It has already changed: a). The pump battery. b) .- The filter that is in the pump. 3) Injector cleaning. 4) Cleaning of the tank. 5) Review and replacement of spark plugs. 6) Time strap replacement and tensor and pulley kit. 7) Universal Correa. car battery and even the water pump all in this year and still presents the fault. The car when handling the only thing that presents is a noise in a sensor like a spark, in the kia it tells me that it is normal. Please if you have experience in a similar case please indicate. Thank you very much for any suggestion.