Ah, the dreaded P1188 code. I lived with that code for over 2 years coming on and off. It is not the turbo, try tracing all your vaccum lines starting from passenger shock tower. After 2yrs and many visits to various dealers and PCM flashes. The problem is caused by a missing vaccum hose to a sensor located on the psgrside firewall. My code is usually trigger when I try to give it a little more accelation from a cruising speed or when I try to throttle up while climbing a hill.
Hope this helps
PAW
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