Over Boosting :confused

[Joe231]

I am seeking input on my over boosting issue.
I just started up my 87 GN last week from hibernation and when I drove it around town it was over boosting. Not sure what's the problem because last year before putting the GN in the garage there was no issues. Any help would be appricated.

 

[williambavila]

I am seeking input on my over boosting issue.
I just started up my 87 GN last week from hibernation and when I drove it around town it was over boosting. Not sure what's the problem because last year before putting the GN in the garage there was no issues. Any help would be appricated.

vacuume leak???

 

[Phoneguy]

Check to see if the puck is moving freely. More than likely it is stuck in the closed position. HTH

Bryan

 

[XTO6]

Could your impeller be binding?