A Sloppy Mechanic
Join Date: Dec 2007
Location: Greenwood, IN
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try and clean the MAF sensor for one, also you can do a little test to see of your intake manifold gasket is leaking. get some carb cleaner or brake parts cleaner, something flammable and in an aerosol can, and spray it all around where the intake manifold meets the cylinder head, if the idle suddenly gets better then you most likely have a leaking gasket.
what likely happened was that your MAF was reading slightly off or your intake manifold gasket was leaking but the ECU had adjusted fuel trims to make up for it so it would run fine, that is up until the battery went dead and the ECU "forgot" the fuel trims and now has a rough idle.
ó2005 Silver Streak LE 6speed (swapped)
-[Build in progress]
ó2002 Audi S6 Quattro - V8 auto
Last edited by TrdSpeed140; 09-04-2010 at 04:46 AM.