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Thermostat and fuel injector cleaner (techron-Chevron). Taped hole in PCV hose to eliminate unmetered air (already done).
Fresh oil change couldn't hurt, clean the plugs if they are recently replaced.
With a thermostat working properly you should see 180-200 cooling system temps, opening point may be on replacement stat, mine was 78.5 C, about 180 degrees middle of the stock gauge on my car.
I prefer OE or Robert Shaw, then Stant.
I can't see the hole in the PCV hose causing the condensation. Metered air would have the same humidity.
With stat working and a more than 2-3 mile each way commute, with fresh oil, the condensation should disappear.
Clear codes and drive it for a few days, see if codes set again. Operating temp needs to be above 180. Wouldn't hurt to run it agressively to help techron clean injectors.
If it runs good at high loads, where vacuum is minimal, but crapsout at low loads when vacuumis high, then suspect more vac leaks. If so maybe a smoke test of the induction system to locate EVERY vacuum leak or they can drive you crazy piecemeal.
The PCV supply hose is not really a vacuum leak directly, but indirectly it is allowing more air (unmetered) through the crankcase ventilation system which is technically a vacuum leak assuming it has a PCV valve going to the intake manifold.
That point (where PCV meets intake manifold and where there is vacuum) is where the excess unmetered air is entering the induction system and creating a lean condition in the ports closest to the PCV valve.
regards
mech
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