My Kia Carnival VQ 2008 185hp Diesel causes problems after changing the fuel pressure sensor, it no longer starts and the screwdriver has not done so in the last 6weeks. I have read that a filter/seven should be dirty with the pre-shipment pump on the tank…. Kia does not get so well with the sulfur in the diesel. In order to get to the pre-shipment pump on the tank, I have to expand the tank or I come there so to look at it? I also read that the high pressure pump could be defective, but why… because then so suddenly because only one sensor was changed? I always had the error message fuel pressure too high…. with rapid acceleration, driving mode was not affected. If I had turned off the car and after 30min. started again the yellow lamp was off again. Who could help? Greetings Thomas