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So I fixed my CEL after 3 days of driving around and rough idling...after installing my intercooler, I had forgotten to reattach my BOV vacuum hose to the engine nipple by the throttle body and intercooler. Solved all my problems, no "Fuel System bank 1 lean" (P0171 code) anymore! Hopefully someone can learn from my idiocracy. :)
 

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So I fixed my CEL after 3 days of driving around and rough idling...after installing my intercooler, I had forgotten to reattach my BOV vacuum hose to the engine nipple by the throttle body and intercooler. Solved all my problems, no "Fuel System bank 1 lean" (P0171 code) anymore! Hopefully someone can learn from my idiocracy. :)
 

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I’m having this problem but can’t see the engine nipple you’re talking about. Post some pictures, thanks
 
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