Well my car is finally fixed. It turned out to be one of the fuel pumps, and the idle mixture was way off. Simply adjusted it with a long screwdriver type tool until it was right. Took a while as we had to keep pulling over to the side of the road to make adjustments, then drive a little while to see if all hesitations were gone.
Hopefully you can use this imformation to find the cause of your problem, as i think it would be the same.