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the dredded po401

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Old 05-21-2011, 08:17 PM
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Join Date: May 2011
Posts: 2
Default the dredded po401

hello all,o1 mountaineer 5.0.I can manually supply ground to the pink and black wire from pcm,and my vacuum solinoid will send vacuum to the egr.Can someone tell me what tell the pcm to provide ground,and do u think I have a bad computer?Thank you in advance...Walt
 

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