It sounds like you may have the caliper on wrong if no air comes out. Can you take a pair of vise grips and gently close of the rubber line to the caliper to see if the brake pedal is better? Also recheck your work of the caliper mount here is a diagrams to help us.
The pad has a notch that must be installed correctly or you will have low pedal.
This video show the job being down on a different car but the process is the same, it shows how to use the tool.
Check out the diagrams (below). Please let us know what happens.
Images (Click to enlarge)
Thursday, December 27th, 2018 AT 6:28 PM