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Old 10-25-2012, 01:47 PM   #6
A4RingedONE8T
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Join Date: Aug 2009
Location: Tampa, FL
Posts: 236
My Ride: Turbo ///M Roadster
Oil under the intake area, as in near the headlight, or under the intake manifold? Most likely is a vac leak, lots of plastic stuff to age underneath the intake manifold. Smoke test will most definitely show your issues if there is one. Reason it runs fine cold and not when hot. Cold = open loop/fixed map. Hot = closed loop/sweeping a/f. This is the reason it proves most likely to be a vac leak. On fixed map, aka ignoring sensor inputs it runs fine. As soon as it goes into closed loop and starts relying off 02 sensors and others it stalls out
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