[s-cars] Valve Cover leak causing boost drop? Revisited

[Jim Fleischer]

Hey all,

Many thanks to all for your responses, and to Dave F. for the crankcase diagrams.....from what I can understand, the fact I have a bunch of air coming through the rear of the valve cover upon pressure test is one of the one-way PVC valves is malfunctioning, allowing gases to vent to atmosphere, outside the "closed" system.  Whether or not this is my prmary issue or not, seems like I need to fix this regardless, then go from there.  So, unless told otherwise, looks like I will be replacing both PVC valves in question, and replacing my valve cover gasket as well.  Any thoughts?

Fuel pump, FPR and filter have all been changed within the last 6 months, BTW.  Spark plugs will be changed this fall.

Looks like the PVC valves are readily available through ECS tuning and AutohausAZ, but having trouble finding the valve cover gaskets.... I assume this is dealer only?  Any tips on parts sources that might carry it much appreciated.  Links to BTDT appreciated as well.

Best regards,

Jim Fleischer
'95 urS6 avant, with breathing difficulties