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Does any one know what would cause the boost pressure to fluctuate. This only happens at 0-3/4 throttle. I need help!!
 

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Stupid Has The Balls
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Log your EGR if you dont have it blocked... An opening and closing EGR will give something similar to what your describing.
 

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EGR most likely. Might want to log while it is doing it, and then you'll know for sure.
 
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