STALLING
I have a 2004 Ram 1500 5.7, One day it started stalling out on me everytime stop and barly run at idle. I change plugs and two o2 senors, problem still remain then I check engin light it gave me codes P0175 and P0172 saying I need to replace MAF senor but they say my truck does not have one. Hoping some one had this problem before and can HELP ME PLEASE

 

Sounds like it could be the tps. You can try a reset or just replace it. If you've got an ohmmeter you can test it. I believe the center pin is pos and the 3rd pin( closest to the firewall and furthest away from engine) is neg. if you slowly open and close the throttle body it should be a smooth increase or decrease of resistance(ohms). If its all over the place then replace it. You can try a tps reset too. Sometimes that works.

 

Check the usual egr and pcv too. If you test the tps, make sure to inspect he back side of the throttle body, that it is clean, too much build up might cause it to stick.