what does code po741 mean?

P0741 is torque converter clutch TCC stuck off. your vehicle is not going into overdrive.killing your gas mileage.

TCC not engaging

get a free diag from aamco and then shop prices

That is easy: Torque Converter Clutch Circuit Performance or Stuck Off. It has to deal with the Engine and Ignition and also the Gear Shift as well. You better take that to the dealer or local mechanic and tell them what it is, and have them do another FULL Diagnostic test to tell you if that code still appears or not. Hope this helps.