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Old 08-09-2011, 05:54 PM   #158
joegr
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Re: codes P0171, P0174 Lincoln LS V6"

Quote:
Originally Posted by mistyb View Post
Having all the same issues mentioned, having error codes PO171 and PO174 system too lean, past codes of PO316, changed all 4 o2 sensors and 3 out of 6 coils and still same problem, after start up the engine idles down and seems to be misfiring...the engine also just dies at an idle, can be in park or in gear?? totally frustrated!!
So, have you checked the PCV plumbing?
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