I noticed an occasional moment of rough idle recently.
So pulled the Throttle Body off for a cleaning. The car has 106,000 miles on it and from the looks of the Throttle Body it had never been cleaned. I also removed and cleaned the Idle Control Valve. It feels like my efforts were worth the 3 hours and $21. worth of gaskets. The car seems to have a smoother response and so far I have not experienced the rough idle and I've gained at least 20 more HP!! (could be imagined HP!!!)
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1998 Boxster
1991 Carrera
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