Um, Procal can read and clear DTCs. Hell, if you have tech, you can read and clear DTCs from your dashboard.
My results on Procal only are in my sig. It will do what you want, give better throttle response, less rev hang and in my case totally woke the car up, to the point I'm handing their ass to people on aftermarket 93R tunes at the track, on 91 octane fuel.
2014 Premium GT, SGM, Brembo, Auto, Tech, Comfort, etc. GT500s, Steeda UCA, VMP auto tune, 100 shot on BBR tune, best et: 11.38 at 120.85
2012 GT, Candy Red, Brembo, 3.73, Tech, Comfort, etc. Procal tune, Roush upper, UMI LCAs, Steeda red bracket, GT500s, 28X10X16 Hoosier slicks, best et: 11.91 at 115.23 RIP