I have a 1997 pontiac gtp and im only running half boost does anybody know what that could be and how to fix it quick!!!???
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08-14-2012
I have a 1997 pontiac gtp and im only running half boost does anybody know what that could be and how to fix it quick!!!???
08-14-2012
So your lego's bar isnt going full?
Do you have a real vacuum/boost gauge to figure out if it really is not seeing the 6-7 PSI a stock GTP gets?
08-14-2012
no it only goes to half boost and it wont go anymore
08-14-2012
You didnt answer my questions.
I need to know what the REAL numbers are to help you, reading the lego's on the dash does nothing, for all I know the DIC's boost gauge is broken and thats why its not filling all the way up.Do you have a real vacuum/boost gauge to figure out if it really is not seeing the 6-7 PSI a stock GTP gets?
And check for broken vacuum lines for leaks.
08-14-2012
Try unhooking the vaccum line from the boost solenoid to the bypass valve.
08-14-2012
i have no idea what the numbers are but ill check for vacuum leaks and go from there
08-15-2012
Check your BBV and make sure the lever is moving up and down completely when someone gives it throttle. Try and hold the lever all the way down while someone gives it throttle and watches the boost.
08-15-2012
Why do you need this "QUICK!!!!!" ?
09-03-2012
why should i hold the lever down then give it throttle? wouldnt that give me no boost because the valve is staying open idk im just not getting it and would really appreciate it if someone explained it
09-17-2012
the bbv is open when the lever is in its up postiton. i had this same issue and i just disconnected the line going from the soleniod to the bbv and all works perfect next time use search bar for i have been chastised for this also it is your soleniod that has malfunctioned. unplug the line and come back and tell me im right
11-03-2012
im having same issue...so i did what u said and unplugged the line from solenoid to bbv and i get full boost but only after 4k rpm below i wont get no boost at all so connected back the line and back to how i was i punch it and gets half boost even in low rpm wot but stays half ways in wot shift where as disconnected i got full boost on wot shifting but no boost on low rpm...what can i do to fix the problem? replace bbv? or bbv solenoid?
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