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02 SUPERCREW Codes P0171 & P0174

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02-01-2010, 17:10	#1 (permalink)
djsmith4 DJ Join Date: Dec 2009 Location: VIRGINIA Posts: 6	02 SUPERCREW Codes P0171 & P0174 Replaced coil packs on #5&7 for previous codes but still receiving codes P0171 & P0174. The truck runs rough after warming up and when at idle. It almost wants to choke out when stopped and idling. I think I smell gas sometimes from the truck but I do not see any leaks around the injectors. I am about ready to pull out what little hair I have left Any suggestions please! DJ

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02-01-2010, 17:40	#2 (permalink)
Bert 2002 F150 XLT Join Date: Nov 2008 Location: Oregon Posts: 9,127	Re: 02 SUPERCREW Codes P0171 & P0174 P0171 and P0174 are lean codes on both banks. Check for vacuum leaks. Hoses, gaskets etc. __________________ Bert

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