How to recalibrate the computer in my engine

You can reset it, it will erase all "Learned Values" and DTCs and will re-adapt to a new driving style. Disconnect both positive and negative battery cables, hold them together for few minutes - a vise grip helps to do it - and turn on the ignition. It will wipe everything and the ECM relearn and readjust to the new driving style. Turn off ignition, reconnect battery cables. Zee