try this

Note: It may, or may not, be a valid point, but I did have all doors closed for this procedure, knowing how touchy computers can be..

Good Luck!!

Procedure: To overcome hesitation at acceleration- for the 5.7L Hemi V-8

1) Turn key to ON position (not ACC), but DO NOT start engine.... now wait a few seconds for the dash lights to clear

2) slowly & steadily press accelerator pedal all the way to the floor and then slowly release at same rate.
NOTE: This step must be done ONE TIME only to ensure accelerator pedal position sensor calibration has been
learned by the ECM

3) Leave ignition switch ON for a minimum of 10 seconds. This will allow the PCM to learn the new electrical parameters

Info re: APPS - The Accelerator Pedal Position Sensor (APPS) is used only with the 5.7L Hemi V-8 engine. The APPS assembly is located under the vehicle battery tray. A cable connects the assembly to the accelerator pedal. A plastic cover with a movable door is used to cover the assembly.
__________________

 

I have already tried to relearn the pedal asy. After a number of tries it has not done anything for the symptoms. I do appreciate all the great info on this forum, In the short time i've been a member I have learned so much about my 300c.