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#1
12-07-2014, 02:08 PM
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4.0L V6 SOHC P0171 P0174 Lean Codes- Common Cause
While there are a few common cause for these codes on the vehicles ( I have a few videos on this already) this one is commonly overlooked as a potential cause of a rough idle, rolling idle and of course the lean codes P0171 P0174. Besides the quick fix in this video I show you how the pcm reacts to this tube being disconnected and why the codes set.
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