P 1188 code coming up while running on vac side of turbo. Anyone have an idea why? I have stg2 wg set at 15 pnds but twice the code has come up. both times I was not in boost, but was going down a long hill and let off the throttle. HELP PLEASE!!!! the dealer is lost and can't take the light!!!! How do you clear the code without reader? Thanks
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