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		Ford Forums - Mustang Forum, Ford Trucks and Cars > Ford Trucks \| Utes \| Vans \|SUVs \| Crossovers > Ford F-150 \| Ford F-250 \| Ford Super Duty \| Ford Diesel
5.4 engine running lean

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08-18-2009, 19:49	#1 (permalink)
BigblueF250 Registered User Join Date: Aug 2009 Posts: 2	5.4 engine running lean 2003 5.4 with a edge programmer cold air intake exhaust throttle bbk throttle body and mass air for mods is putting out a code bank one and two lean code any suggestions on how to fix it or get more fuel into it ???

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08-22-2009, 07:21	#2 (permalink)
360ci canuck Join Date: Nov 2007 Location: Waterloo Posts: 1,598	Re: 5.4 engine running lean You might have to use the stock MAF sensor to get the proper A/F ratio. A custom tune would be the way I would go in order to get more fuel into the engine, but that'll set you have some hefty $$$. __________________ '99 Taurus 3.0L 2V Vulcan 145hp; 124,250m '00 Durango R/T 360ci 300hp (modded); 112,800m '06 Pontiac G6 GT 3.5L 220hp; 21,100m Amsoil in all vehicles!

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