Corsa Q & Q question
 

I have the Quick and Quiet diverters
they are the reverse type " open when off"
well I have this weird problem most of the time
I have to rev the motor to close them I dont think
the voltage is a problem the controller harness is only
3 months old, if I disconect one of the coils it works
without reving the engine, to make sure it was not a coil problem I switched them back and forth
My only thing I have to check now is the output voltage
coming from the alternator to see if its too low?