What can happen if you have your battery charger hooked up to your car while your are programming?? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> did i screw up my computer?

 

Well, does everything function correctly, and the engine run okay after the HPP3/charger? If so I wouldn't worry. Some have mentioned the possiblity of a problem running the unit with battery charger on, due to the fact that "DC voltage" from a battery charger is usually pulsed square wave and could cause problems with the pcm. I don't actually know of anyone that has had this problem, but it could depend on how clean the output from the charger is. Also some chargers cycle down to low/zero output if they "detect" that the battery voltage is sufficient.