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Old 11-05-2019, 09:39 PM   #108
Scooby Newbie
Member#: 318247
Join Date: Apr 2012

Originally Posted by subasubarubaru View Post
Did any of you solve this issue? I can't get past 10psi boost. No leaks; double sure. Starts bucking at WOT and won't reach target boost. Changed back to oem bcs and got 15psi then it reverted right back to same bucking, shuddering problem.
This just happened to me. My coils went bad right at the start of the cold weather and I replaced them with new plugs and problem solved. I was having bucking at WOT as well as a flashing CEL at one point, the car ran fine otherwise. I would start there.
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