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p0171 with new intake and pcv

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hey guys just done a hotlap in the misses cruze after replacing the intake manifold and the valve cover. the car now has better bottom end but P0171 came back...

so back to square 1.

fyi new intake came with all bolt ons but i used existing injectors and evac because i couldn't get the clips undone... corrugated hose is ok
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