my husband is currently on the road for work and the turbo blew out in our new truck. we replaced the turbo no problem and now they mechanic said that the backdraft control module is out. anyone i talk to has never heard of this part. someone plz help. what is it? what does it do? the mechanic says he can haul up to north dakota from missouri without it and it wont affect the truck! is this true?!?! in desperate need of some advice!!!!