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#1
11-06-2004, 10:07 AM
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Burning Lean - NEED HELP!
I need help on this one! I've got a 97 F-150 w/ the 5.4L and it sat for about 4 years before I bought it. Now I have done a complete tune up (wires, plugs, PM, O2 sensors, ect.) and it still has a check engine light. OBD-II reads that its burning lean, and besides that it SUCKS on mpg. Any Ideas? Im not a rich person so i dont want to shoot blindly.
Thanks John 
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#2
11-06-2004, 10:17 AM
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Re: Burning Lean - NEED HELP!
Do you have a K&N air filter?
If so, throw it out, and get a standard paper filter. Then, clean you MAF sensor, located inside the air filter housing. Remove the two "tamper proof torx #20" screws, carefully pull the sensor out, spray the two wires off with "nonresidue contact cleaner", and reassemble. Also, remove the negative battery cable while doing this. Do you have a CEL?
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