Code 1740 and 442 keeps coming up what to do? I've changed evap leak det pump

What is your question?

2001 ram 1500 codes 1740 and 442 keep coming up I've changed the evap detection pump code 442 still there 1740 code the trans feels like it's slipping when i go to take off then it will crab. I changed the trans fluid and filter will changing the governor pressure solenoid and pressure switch fix the problem? What seems to make the problem better or worse? It dont matter warm or cold How long have you had this problem? Idk bought truck that way