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PSE: Better open all the time or speed activated

FlashingBlade · 2005-12-19T22:37:30+0000

As some of you may recall, I last reported on my saga of installing a PSE override switch for my factory installed PSE (2002 996 C2). I also added a switch to the speed sensor wire as explained in another message. Now I am wondering what is better for the flaps in the muffler. Is it better for these things to be constantly opening and closing as your speed varies (possibly causing more mechanical wear) or leaving the flaps open, possibly causing soot and crud to build up on the flap? As a side note, this little project of adding a muffler override switch uncovered a host of other problems. The vacuum hose on one side had melted and the flap in the other muffler was defective and ratteling around. All the vacuum routings were incorrectly installed to boot. Porsche fixed all of it under warrantee. I'll eventually get this car debugged. Thanks.