jlotruglio
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- Joined
- May 18, 2007
- Posts
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I have a 98 EB with a 5.4 I am getting a P0171 and P0174 codes lean on Banks 1 and 2. I have cleaned and then changed the MAF changed the Fuel filter. I am now looking for vacuum leaks. I have read posts which made reference to intake gasket problems and other leaks. Can anyone provide more specific info on these common leaks. Also should the PVC be pulling vacuum or should it be neutral to positive. thanks -Jim
