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09-10-2010, 02:18 PM
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#1 | |
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AF Newbie
Join Date: Sep 2010
Location: Gastonia, North Carolina
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2004 Lincoln Towncar p0171 & p0174 codes
Hi, my 2004 Lincoln Town Car Ultimate just pushed out the P0171 & P0174 codes today. The scanner said 'System Too Lean Bank 1' and 'System Too Lean Bank 2'.
What does this mean? and How do I fix it? Please help I am not very good with engines and I do not have much money to spend. I am SLOWLY trying to learn about this car as it is my lifeline of working (I own a very small chauffeur and limousine service). Thanks in advance for all of your help, Bruce |
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09-10-2010, 03:03 PM
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#2 | |
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AF Enthusiast
Join Date: Mar 2008
Location: garner, North Carolina
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Re: 2004 Lincoln Towncar p0171 & p0174 codes
Sounds like unmetered air leaks, causing the engine to run lean.
Do a Google ''Auto vacuum leak smoke test'' Plastic, rubber, and gaskets will go bad with age + mileage. Suspect the EGR, DPFE, or PCV system is sucking in Air. |
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