Code P0171/P0303 Misfire question plz help
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Code P0171/P0303 Misfire question plz help
I have a '05 5.4L XLT Screw 11,000 miles and Just wondering if anyone else had the same problem. I noticed the truck not running right like it was missfiring not bad but noticable. Then today it really got worse the check engine light flickered on and off then when I checked it with my meter and it came up with a P0171 Lean fuel, and a P0303 misfire Cylinder 3. I'm running 87 octane in right now. I'm new to Ford products being this is my first truck and my first Ford, just want to know what might of caused this misfire in the engine. Please help
Last edited by BigDogg715; Aug 20, 2006 at 05:29 PM.
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From: A farm in the country
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