Please be careful when resetting the throttle, the sprintbooster settings and reflashing your car with EC tune. If you should change the sprint booster settings during a reflash, you may encounter an error and requires support for your car to take even the old map settings.

Flash the car, restart the car, set the sprint booster to green or red, turn off the car, step on the gas pedal for 15 or so seconds with the ignition switch on, then turn of the ignition. Wait 2 minutes and then start the car and drive like the dickens.

Car will accelerate quickly but no herking and jerking.