here is a little more help.
p1757- http://www.justanswer.com/dodge/4pa6k-fix-p1757-code-2001-dodge-ram-5-9-engine.html
p1762- http://www.justanswer.com/dodge/179ix-dtc-p1762-governor-pressure-sensor-offset-rpm-reaches.html
p1693- http://www.justanswer.com/dodge/2ni7z-99-dodge-shake-the-p1693-dtc-diesel-000-miles.html