boost question?
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Joined: Jan 2006
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From: Schiller Park
boost question?
Hey guys I have a Greddy B spec 2 boostcontrol er and when I'm on high RPMs boost is unstable, the boost gauge shows 22- 18 over and over it spikes all the time and I've tried to all kind of settings on the boost controler and it still does that. If I'm pressing gas pedal slightly it holds 20/21 PSI so do u guys think I need a new wastegate actuator or colder spark plugs??? or both 
