Low idle

[Rod D]

Changed my map,MAF, evap, reset the battery with both red and black wires touching to drain, new pcv valve,ran seafoam through it,my transmission vent hose was losing a lot of air,so I changed the vent,still I only get 400-450 idle in drive, relearned throttle, cleaned it , still low. My xtool ip616 keeps saying electric brake module,bleed it still low,I hear another hissing noise from front of truck, but when I put my ear by it ,it sounds like it's on the other side,I only have 55000 miles on my 2014 Chevy Silverado Lt Texas edition double cab,I use 0-20w Mobil 1 extended 20,000,I change the oil bout 11000 miles because I don't drive it much,I had the vacuum pump replaced bout 21/2 years ago,I called Chevrolet and they said it was a special warranty for the pump, but my scan tool is saying electronic brake control module,I need help,I'm tired of messing with it,it's been almost 2months of messing