as you said and make the car run like poo. First do you have your splash sheild attached to the pop charger? The splash sheild must be attached I hear this can cause the car to run poor. Next make sure you are firing on all cylinders and make sure all injectors OHM out between 10-14ohms. I would also run a ECU self Diagnostic and see if you have any error codes that are showing up. Just take a minute collect yourself and try to trace the problem.