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#1
05-10-2007, 04:05 PM
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f150 bank system code issues
I Have A 1996 F150 With A Fault Code Of P0171 And 0174. These Codes Are For A 8 Cyl Truck But The Problem Is I Have A 6 Cyl!!! Whats The Cure!!! Could The Computer In The Truck Have Been Replaced With An Incorrect Type? Where Is The Computer Located And How Would I Knowif It Is The Correct Type? Help Please
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#2
05-10-2007, 04:14 PM
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Re: f150 bank system code issues
P0171 is the code for bank No. 1 running lean, and code P0174 is the code for bank No. 2 running lean. regardless of number of cylinders.
Clean the MAF and check for a vacuum leak downstream of the MAF. if neither or those are the problem, check fuel filter and/or fuel pressure.
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Seatbelts Saved My Life 
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