is 13brew with a lt8 -when the hand controller is in,the car starts to boost then the controller flashes battery-and there is a red light on the unit that flashes then goes away after the car is cruiseing-please any help

 

Check your voltage isnt going above 16V or going below 8v.
do a datalog. youll see it.

 

it was going about 15 16v -what can be causing this? and what can be done to fix

 

Your alternator regulator is stuffed or your wiring is incorrect.

Get the alternator tested at auto elec and if its ok wiring is bad.