On the way to work this morning my truck acted like it was not getting fuel when I depressed the accelerator. It idled fine, but when the accelerator was pushed again, it acted like it was bogging down and would loose speed. All at once it would take off like nothing was wrong and run like a scalded ape, a mile or so down the road it would do the same thing. When I got to work, I checked the fault codes and 1596 and 1693 came up. Any suggestions?