Well I've had this problem before and thought it was my plugs and wires so I changed them,and it went away. But now its back. I accelerate fine and normal until I hit boost and once I hit boost and accelerate the car bogs down, it shows im boosting but im not going anywhere. Could it be a loose ic pipe or I did change my oil today to Mobil 1 supersyn 15w30. Other then those two possibilities what else could it be. I want this problem solved. I'll be happy to answer any ?'s if it would help in finding what is wrong.