Competition no boost

[Halfbakediesel]

Truck will now build boost while power braking. It did before. I have had this happen occasionally but have not found something to tie it to. Will build boost great under normal acceration. I am running in a dirt drag tomorrow, thats only

if i can figure out whats going on. Thanks for any suggestions.

 

[Huff N Puff]

First check the tubo charger,make sure its spinning free,next check the waste gate make sure its not stuck open then check the intercooler boots,that ought to keep you busy.

 

[Halfbakediesel]

still run 65 plus psi wide open. but will run tests. wastgate stuck open makes sense.