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Thread: Boost problems

  1. #1
    SE Level Member
    Join Date
    Mar 2015
    Western North Carolina

    Default Boost problems

    Hey guys I have a 97 gtp an I'm having some boost problems it's only showing 4.4 lbs of boost on my gauge an my torque app an I can not figure out what is going on with it I've looked up the vacuum diagrams an it looks right an my bbv is hittin the set screw at the very bottom when reving the car an goin down the road an I have no leaks anywhere that I can find the only thing I can think to change now is the map sensor should that cause boost not to show if it's bad I'll list all my mods at the bottom thank you guys

    Xp hot cam
    ls7 lifters
    gen v sc
    gen v lim
    140 # valve springs
    3.4 sc pulley
    speed daddy headers
    zzp 1.0 pcm
    ac delete
    all new internals pistons rings crank bearings cam bearings oil pump double roller timing set rods newer trans

  2. #2
    GXP Level Member GTPpower's Avatar
    Join Date
    May 2008
    Schuyler, NE

    Default Re: Boost problems

    It could be the boost bypass solenoid.

    2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold
    2005 F350 6.0 - studded, deleted, bulletproofed, tuned
    1966 Olds Cutlass 442 Convertible
    2000 Chevy Silverado 2500 6.0l

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